Quick Answer. The best e-bike for the apocalypse, for most riders, is the Himiway D5 Pro ($1,999). The Qiolor TIGER PLUS ($2,499) carries 1,680 Wh, and the Addmotor Garootan M-81 ($1,099) costs least. With the grid down, a 200 W solar panel refills a computed 10 to 40 miles a day.
Nobody keeps outage statistics for zombies, so this guide plans for the disasters the federal record does count. In 2024 the average US electricity customer lost power for 11.0 hours, the most of any year from 2015 to 2025 (EIA, Electric Power Annual, Table 11.1).
Ready.gov's evacuation page adds the part that matters here: "Gas stations may be closed during emergencies and unable to pump gas during power outages" (Ready.gov). An e-bike skips the pump. It runs on stored power and on sunlight, and you can arrange both this week.
The Seven Mile Bridge in the Florida Keys, in a scene generated with Playcut from a 2003 aerial photograph by the United States Department of Transportation (public domain).
8 tough e-bikes for 3 jobs · 224 bikes screened · solar computed for 10 US cities · 10–40 miles a day from 200 W of sun · 7 ways to charge · every pick read against 51 jurisdictions' definitions. Prices and stock read from our store on November 7, 2026; maker figures verified on each maker's own site.
Written and reviewed by Milad Ghobadibeygvand, BScN (Western University, 2014), Redtail eBikes. First verified November 6, 2026. Last verified: November 7, 2026. Corrections: support@redtailebikes.com.
At 15 mph, every two-wheeled pick here burns about 18 Wh a mile, so one 200 W panel buys nearly the same daily miles on a $1,099 bike as on a $2,499 one. A bigger battery buys days of waiting. The panel buys the miles (what the sun buys, city by city).
Start here. Pick the row that sounds like you; the last column names the fact that would send you to a different bike.
| Your situation | Start with | Price | Where the answer changes |
|---|---|---|---|
| Leaving over any surface, with gears to pedal on | Buy the D5 Pro | $1,999 | under 5 ft 3 in: the FLASH LITE ST fits from 4 ft 8 in |
| The same job on the least money | Buy the Garootan M-81 | $1,099 | over 5 ft 9 in: the D5 Pro, fitted to 6 ft 5 in |
| The biggest single battery, with gears and suspension at both ends | Buy the TIGER PLUS | $2,499 | in a state that writes "less than 750 watts": the D5 Pro |
| Water, food, a child or the dog | Buy the G30-CARGO 2.0 | $1,444 | where 750 W is an e-bike and you want more battery: the C3 Cargo at $1,499 |
| A heavy load you never want to balance | Buy the E-325 | $3,399 | rough ground: the C3 Cargo on two wheels |
| The most miles a dollar buys | Buy the TIGER RE | $1,399 | over 5 ft 9 in: the TIGER PLUS, the same 1,680 Wh |
| Two batteries on a frame you step through | Buy the FLASH LITE ST | $1,614 | if pedaling home matters: the D5 Pro has 9 gears |
The best e-bike for the apocalypse, by the job you need done
Federal data released on October 21, 2026, put 2024's outages at 11.0 hours per customer (Table 11.1). A bike bought on looks alone can leave you pushing 80 pounds home. So choose by job: getting out, hauling supplies, or going the longest between charges.
These are the toughest bikes we sell, and tough has to mean something you can check. So we wrote three job tests before reading a single result, then ran the bikes we recommend through them:
- Bug-out: tires 4.0 in wide or wider, a suspension fork, hydraulic brakes and at least 720 Wh.
- Hauler: rated for 400 lb, or for 350 lb on a bike built for cargo.
- Long-haul: 1,000 Wh or more, or two batteries.
Of the 224 e-bikes active on our store on November 7, 2026, 148 are adult bikes we recommend and can sell today. On our listings' figures, 76 pass the first test, 44 the second and 75 the third. Each finalist's figures were then read again on its maker's own site.
Each job runs from budget up, and every card ends by naming who should buy a different one. A range on a card is computed for a 180 lb rider with 30 lb of gear at a steady 15 mph on flat ground, on the throttle alone, so a maker's pedal-assist figure runs higher (the method).
Bug-out: leave over any surface
For getting out, the Garootan M-81 ($1,099) on a budget, the D5 Pro ($1,999) for most riders, and the TIGER PLUS ($2,499) for the biggest battery.
This is the job preppers call a bug-out bike or an SHTF bike. All three run 4-inch tires, a suspension fork and hydraulic brakes, and all three keep real gears, because a bike with a dead battery still has to move. Only the D5 Pro sends its motor through those gears.
Addmotor Garootan M-81
$1,099The lowest price of the eight, with a rack built into the frame for whatever you could not leave behind.
Motor 750 W rear hub · Battery 48 V 15 Ah (720 Wh) · Gears Shimano 7-speed · Tires Kenda puncture-resistant 20 × 4.0 in
Addmotor fits it to riders 5 ft 4 in to 5 ft 9 in, rates it for 400 lb and weighs it at 85 lb, with a 100 mm oil-spring fork, hydraulic disc brakes and a 25.8 in rear rack. Its spec strip lists UL 2271.
The number that decides it: 41 computed miles a charge (15 mph, flat, throttle only, 180 lb rider, 30 lb of gear) for $1,099.
Where it counts as an e-bike: 31 of the 51 jurisdictions (the 750-watt line).
List price: Addmotor lists it at $2,099 and sells it at $1,099, the price you pay here.
Our full review: Addmotor Garootan M-81 review
Best for: you, if you stand 5 ft 4 in to 5 ft 9 in and want fat tires and cargo space on the least money. Not right for: riders over 5 ft 9 in, whom the D5 Pro fits to 6 ft 5 in; states that write "less than 750 watts", where the D5 Pro is rated 500 W.
Ships free within the contiguous United States, New York City excepted for now · dispatched within 1–3 business days · warranty claims made through us
Himiway D5 Pro
$1,999The one to start with: a geared motor for bad ground, and a 500 W rating that keeps it an e-bike in nearly every state.
Motor 500 W mid-drive (1,300 W peak), 130 N·m · Battery 960 Wh · Gears 9 · Tires 26 × 4.0 in
Himiway fits it to riders 5 ft 3 in to 6 ft 5 in, rates it for 400 lb and weighs it at 79 lb with the battery, with a 100 mm lockout fork and 180 mm hydraulic brakes. A rear rack, a fender kit and a "16 in 1 Repair Tool" come with it.
The number that decides it: 130 N·m through 9 gears, on the only mid-drive of the eight, with 53 computed miles a charge (15 mph, flat, throttle only, 180 lb rider, 30 lb of gear).
Where it counts as an e-bike: 50 of the 51 jurisdictions (the 750-watt line).
List price: Himiway lists it at $2,599 and sells it at $1,999, the price you pay here.
Our full review: Himiway D5 Pro review
Best for: you, if you want one bike for rough ground and a long way home, in any state but New Jersey. Not right for: you, if you stand under 5 ft 3 in (the FLASH LITE ST fits from 4 ft 8 in); heavy hauling, where the G30-CARGO 2.0 is rated for 440 lb.
Ships free within the contiguous United States · dispatched within 1–3 business days · warranty claims made through us
Qiolor TIGER PLUS
$2,499The biggest single pack here with gears under you and suspension at both ends, on a bench that seats two.
Motor 750 W hub (1,100 W peak), 85 N·m · Battery 48 V 35 Ah (1,680 Wh) · Gears 7 · Tires 20 × 4.0 in
Qiolor fits it to riders 5 ft 3 in to 6 ft 6 in. Its page gives a 400 lb load and a weight of 90 lb; its manual gives 155 kg (341.7 lb) and 46 kg (101.4 lb). Plan on the lower load.
The number that decides it: 94 computed miles a charge (15 mph, flat, throttle only, 180 lb rider, 30 lb of gear), with 7 gears still on the bike.
Where it counts as an e-bike: 31 of the 51 jurisdictions (the 750-watt line).
Our full review: Qiolor Tiger Plus review
Best for: you, if range comes first and you still want gears and two riders' worth of seat. Not right for: you, if you stand under 5 ft 3 in (the TIGER RE fits from 5 ft 1 in); states that write "less than 750 watts", where the D5 Pro is rated 500 W.
Ships free within the contiguous United States · dispatched within 1–3 business days · warranty claims made through us
Hauler: water, food, a child, the dog
For supplies, the G30-CARGO 2.0 ($1,444) rated under 750 W, the C3 Cargo ($1,499) for more battery, and the E-325 ($3,399) for the heaviest loads.
Weight is the reason to own one. A 440 lb rating, less a 180 lb rider, leaves 260 lb, about 31 gallons of water at 8.3 lb a gallon (USGS density table).
Ready.gov's kit calls for "one gallon per person per day" (Ready.gov), so that load is about a week of water for a family of four.
A full load costs range. With all 260 lb aboard at 15 mph on flat ground, on the throttle, the G30's 38 computed miles fall to 28 and the C3's 54 to 40; the E-325's 46 fall to 32 with 370 lb. Eunorau's 440 lb covers rider, passengers, cargo and accessories together (its FAQ), so ask us what the rack itself should carry before you stack it, and put anything heavier on a trailer.
Eunorau G30-CARGO 2.0
$1,444A longtail rated at 500 W, so it stays an e-bike in nearly every state as it ships, with room for a second pack.
Motor 500 W rear hub, 65 N·m · Battery 48 V 14 Ah (672 Wh), 1,392 Wh with Eunorau's optional 15 Ah second pack · Gears 7 · Tires Kenda 20 × 3.0 in
Eunorau rates it for 440 lb of rider, passengers and cargo together, fits riders 5 ft 1 in to 6 ft 2 in and weighs it at 78 lb, with 180 mm hydraulic disc brakes. It ships as a Class 2 e-bike limited to 20 mph, and its spec list marks it UL certified.
The number that decides it: 260 lb left for cargo with a 180 lb rider aboard, on a 500 W rating.
Where it counts as an e-bike: 50 of the 51 jurisdictions as it ships (the 750-watt line).
List price: Eunorau lists it at $1,699 and sells it at $1,444, the price you pay here.
Our full review: Eunorau G30-CARGO 2.0 review
Best for: you, if the load is the job and your state draws its line below 750 W. Not right for: soft sand or mud on 3 in tires, where the D5 Pro runs 4 in; a family-size load, where the E-325 is rated for 550 lb.
Ships free within the contiguous United States · dispatched within 1–3 business days · warranty claims made through us
Himiway C3 Cargo
$1,499More battery and more motor than the G30 for $55 more, wherever a 750 W motor counts as an e-bike.
Motor 750 W hub, 86 N·m · Battery 960 Wh · Gears Shimano Altus 7-speed · Tires 20 × 3.0 in
Himiway fits it to riders 5 ft 2 in to 6 ft 3 in and weighs it at 80 lb, with Tektro 180 mm hydraulic brakes. It rates the bike for 440 lb, of which the rider's own limit is 265 lb.
The number that decides it: 54 computed miles a charge against 38 on the G30's single pack (15 mph, flat, throttle only, 180 lb rider, 30 lb of gear).
Where it counts as an e-bike: 31 of the 51 jurisdictions (the 750-watt line).
List price: Himiway lists it at $2,199 and sells it at $1,499, the price you pay here.
Our full review: Himiway C3 review
Best for: you, if you weigh under 265 lb and want the bigger pack on a two-wheeled hauler. Not right for: riders over 265 lb, who should read the G30-CARGO 2.0, whose 440 lb covers everyone and everything aboard; states that write "less than 750 watts", where the G30-CARGO 2.0 is rated 500 W.
Ships free within the contiguous United States · dispatched within 1–3 business days · warranty claims made through us
Addmotor E-325
$3,399It stays upright with the load aboard, so a heavy box of supplies never has to be balanced at a stop.
Motor 750 W rear hub (1,400 W peak) · Battery 48 V 20 Ah (960 Wh) · Gears Shimano Tourney 7-speed · Brakes 180 mm hydraulic on all three wheels · Tires 20 × 2.4 in front, 24 × 3.0 in rear
Addmotor fits it to riders 5 ft 2 in to 6 ft 4 in, rates it for 550 lb, weighs it at 198 lb with the box and limits it to 15 mph. The box measures 36 by 25 by 23 inches, and a parking brake keeps it still for loading. Addmotor includes a rain canopy and lists UL 2271.
The number that decides it: 370 lb left for cargo with a 180 lb rider aboard, the most of the eight, with 46 computed miles a charge (15 mph, flat, throttle only, 180 lb rider, 30 lb of gear).
Where it counts as an e-bike: 27 of the 51 jurisdictions, with Connecticut unsettled (the third wheel).
List price: Addmotor lists it at $4,999 and sells it at $3,399, the price you pay here.
Best for: you, if you are moving people or supplies on pavement and stopping often. Not right for: rough or soft ground on tires this narrow, where the C3 Cargo runs 3 in tires and a suspension fork; a road you may have to lift it over, since it weighs 198 lb.
Ships free within the contiguous United States, New York City excepted for now · dispatched within 1–3 business days · warranty claims made through us
Past the rack: a trailer
A trailer puts the load on its own wheels. We sell Eunorau's two-wheel hunting trailer at $336, rated for 200 lb and weighing 27.8 lb, and Eunorau lists the G30-CARGO among the bikes it hitches to with an M12 to M10 adapter at $26.40.
With 200 lb on the trailer and 30 lb of gear on the bike, we compute 28 miles a charge on the G30's single pack and 59 on two, at 15 mph on flat ground on the throttle, before the trailer's own wind drag. For any other pick, send us the model and we'll check the hitch before you order. Our game carts and trailers guide covers the rest.
Long-haul: the most days between charges
For distance, the TIGER RE ($1,399) gives the most battery for the money, and the FLASH LITE ST ($1,614) goes furthest on two packs.
When charging is the scarce thing, battery size is how many cloudy days you can wait. A luxury tier is missing here: the two-battery trike that would fill it is not buyable on our store today, and we won't fill the slot with a bike that fails this job's test.
Qiolor TIGER RE
$1,399The same battery as the TIGER PLUS for $1,100 less, on a bike sized for riders up to 5 ft 9 in, with one gear.
Motor 750 W hub, 85 N·m · Battery 48 V 35 Ah (1,680 Wh) · Gears single speed · Tires 20 × 4.0 in
Qiolor fits it to riders 5 ft 1 in to 5 ft 9 in, rates it for 400 lb and weighs it at 98 lb, with rear suspension and a top speed set to 20 mph. Its page lists UL 2849.
The number that decides it: 93 computed miles a charge (15 mph, flat, throttle only, 180 lb rider, 30 lb of gear), at the lowest price per watt-hour of the eight.
Where it counts as an e-bike: 31 of the 51 jurisdictions (the 750-watt line).
List price: Qiolor lists it at $2,099 and sells it at $1,399, the price you pay here.
Our full review: Qiolor Tiger RE review
Our own ride: five minutes on a TIGER RE, off the pavement and on, below this card.
Best for: you, if you stand 5 ft 1 in to 5 ft 9 in and want the most miles your money buys. Not right for: pedaling home, since one gear and 98 lb make a dead battery a long walk and the D5 Pro has 9 gears; riders over 5 ft 9 in, whom the TIGER PLUS fits to 6 ft 6 in.
Ships free within the contiguous United States · dispatched within 1–3 business days · warranty claims made through us
Eunorau FLASH LITE ST
$1,614A step-through that doubles its battery and still carries 440 lb, fitted to the widest range of heights here.
Motor 52 V, 750 W hub, 92 N·m · Battery 52 V 16 Ah (832 Wh), 1,716 Wh with Eunorau's optional second pack at 17 Ah · Gears single speed · Tires CST 20 × 4.0 in
Eunorau fits it to riders 4 ft 8 in to 6 ft 4 in, rates it for 440 lb and weighs it at 82 lb, with four-piston 180 mm hydraulic brakes and a 60 mm lockout fork. Its spec list marks it UL certified and includes a tool kit.
The number that decides it: 97 computed miles on two packs, the most of the eight, and 47 on one (15 mph, flat, throttle only, 180 lb rider, 30 lb of gear). Eunorau prints the second pack as 17 Ah and as 21 Ah, and we use the smaller.
Where it counts as an e-bike: 31 of the 51 jurisdictions as it ships (the 750-watt line).
List price: Eunorau lists it at $1,899 and sells it at $1,614, the price you pay here.
Our full review: Eunorau FLASH LITE ST review
Best for: you, if you want two packs on a frame you can step through, from 4 ft 8 in. Not right for: pedaling far on one gear, where the D5 Pro has 9; states that write "less than 750 watts", where the G30-CARGO 2.0 takes a second pack at 500 W.
Ships free within the contiguous United States · dispatched within 1–3 business days · warranty claims made through us
All eight side by side
| Bike | Price | Battery | Miles a charge | Refill at the wall | Rated load | Weight | E-bike in |
|---|---|---|---|---|---|---|---|
| Garootan M-81 | $1,099 | 720 Wh | 41 | 7.5 h | 400 lb | 85 lb | 31 of 51 |
| D5 Pro | $1,999 | 960 Wh | 53 | 6.7 h | 400 lb | 79 lb | 50 of 51 |
| TIGER PLUS | $2,499 | 1,680 Wh | 94 | 10 to 12 h | 400 lb | 90 lb | 31 of 51 |
| G30-CARGO 2.0 | $1,444 | 672 Wh (1,392 with two) | 38 (79) | 4 to 6 h (Eunorau) | 440 lb | 78 lb | 50 of 51 |
| C3 Cargo | $1,499 | 960 Wh | 54 | 6.7 h | 440 lb | 80 lb | 31 of 51 |
| E-325 | $3,399 | 960 Wh | 46 | 10.0 h | 550 lb | 198 lb | 27 of 51 |
| TIGER RE | $1,399 | 1,680 Wh | 93 | 10 to 12 h | 400 lb | 98 lb | 31 of 51 |
| FLASH LITE ST | $1,614 | 832 Wh (1,716 with two) | 47 (97) | 8 to 10 h | 440 lb | 82 lb | 31 of 51 |
Miles a charge is computed at a steady 15 mph on flat ground, on the throttle alone, for a 180 lb rider with 30 lb of gear; a second figure is with the optional second pack. Refill at the wall is the pack's amp-hours divided by the charger's amps, or the maker's stated time where it gives one. E-bike in counts the 51 jurisdictions (how).
Buy for the job, then for the height. The D5 Pro covers the most ground for the most riders; the Garootan M-81 and the TIGER RE stop at 5 ft 9 in, and the two 500 W bikes are the ones to buy where the law says "less than 750 watts".
A 130 N·m mid-drive through 9 gears, 960 Wh and 4 in tires, at $1,999. It ships free within the contiguous United States.
Buy the D5 Pro, the one to start withWhat a load, gravel, wind and cold do to that range
Every range above is a mild, still day on pavement. Change one thing at a time, for the same 180 lb rider on the throttle, and the D5 Pro's 53 computed miles move like this:
| Change one thing | Wh a mile | Miles on 960 Wh |
|---|---|---|
| Nothing: 15 mph on pavement, 30 lb of gear, a mild, still day | 18 | 53 |
| Slow to 10 mph | 14 | 71 |
| Speed up to 20 mph | 25 | 39 |
| Fine gravel | 20 | 49 |
| Coarse gravel | 22 | 44 |
| 100 lb more gear | 21 | 47 |
| A 10 mph headwind | 34 | 28 |
| 32°F | 20 | 42 |
| 100 lb more, coarse gravel and 32°F together | 29 | 29 |
| All three, at 10 mph | 25 | 35 |
Each row scales this page's figure by the ratio from the motor model in our D5 Pro review. Gravel multiplies rolling resistance by Meyer, Kloss and Senner's ratios from a four-wheeled e-bike, 1.20 for fine and 1.50 for coarse, which is our inference for these tires. The 32°F rows give the pack a measured LG cell's 89% of its energy, with denser air and stiffer tires.
Speed is the lever you hold: dropping from 15 mph to 10 adds 18 miles and costs only time. A 10 mph headwind does the most damage here, cutting 53 miles to 28, so slow down into it.
Climbing is a separate bill. Each 1,000 ft up costs this bike about 150 Wh, or about 8 flat miles, and the descent puts none of it back, since none of the eight makers' pages we read lists regenerative charging.
Plan on about half. With 100 lb more aboard on coarse gravel at 32°F, the D5 Pro's 53 computed miles become 29, or 35 at 10 mph. Size your plan to that number.
What the spec sheet means with the power out
Five lines on a product page change meaning once the wall outlet is dead:
| The spec sheet says | With the grid down it means |
|---|---|
| 960 Wh battery | 53 computed miles, or 5.4 days of a 200 W panel in a Seattle December |
| 2.0 A charger on a 48 V bike | up to about 137 W from the outlet, above a car socket's 120 W |
| 3.0 A charger | up to about 205 W from the outlet, so check your power station's AC rating |
| 440 lb payload | rider, passengers and cargo together: 260 lb left after a 180 lb rider |
| 75 miles (PAS1) | Addmotor's figure for the M-81 at its lowest pedal-assist level; on the throttle at 15 mph with gear aboard we compute 41 |
For more on each kind of bike, see our fat-tire guide, long-range guide and dual-battery guide, or browse the store's cargo e-bikes.
Why the pumps stop when the grid does
A gas pump is an electric machine. Florida's statute lists what a station has to power: "all fuel pumps, dispensing equipment, lifesafety systems, and payment-acceptance equipment" (Fla. Stat. § 526.143). Lose the grid and a station without backup stops selling, and a station with power can still run dry.
Florida's law reaches part of its stations. A retail outlet needs a transfer switch if its certificate of occupancy dates from July 1, 2006, or later, after new construction or a substantial renovation, or if it sits within half a mile of an interstate or evacuation route and has 16, 12 or 8 fueling positions, depending on its county's population (§ 526.143(2)-(3)).
The mistake is reading "prewired" as "open". An owner of 10 or more outlets in a county has to keep one portable generator for every 10, available within 24 hours after a disaster (§ 526.143(5)), so a generator can be shared across a chain.
New York's FuelNY program uses the same idea: a station on its list has a transfer switch and a plan to bring in a generator within 24 hours of an energy emergency declaration, and the state's register lists 924 stations (New York's open-data register).
The week after Sandy: power came back before gasoline did
The federal survey of New York-area stations after Hurricane Sandy, in November 2012, shows what those laws can't fix. On November 2, EIA estimated that two thirds of the area's stations had no gasoline for sale, counting the 53% it could not reach. Only 3% told EIA that a lack of power was the reason, and 10% had power but no gasoline (EIA, Today in Energy).
A week later no station in the sample reported a power problem, and 21% still reported no gasoline; EIA's estimate for the area stood at 28% (EIA). The grid can come back before the fuel does. Keep your car at the "half tank" Ready.gov asks for (Ready.gov), and treat the bike as your second way out.
2024's storms, in the federal record
Hours of interruption per customer, all events, split into everyday outages and major events. EIA, Electric Power Annual, Table 11.1 (IEEE method).
Everyday outages hold near 2 hours a year. The storms are the swing: major events made up 8.8 of 2024's 11.0 hours, and the figure fell to 4.5 hours in all in 2025 (Table 11.1). None of it was the end of the world, and all of it was a bad week for someone:
- Hurricane Beryl, Texas. 2.6 million customers without power (EIA).
- Hurricane Helene, 10 states. 5.9 million customers, at least 1.2 million of them in South Carolina, where customers averaged nearly 53 hours of interruptions in 2024, the longest of any state (EIA).
- Hurricane Milton, Florida. 3.4 million customers (EIA).
The bridge on our cover sits in a county that plans for this. Monroe County's shelter page says, "There are no shelters in Monroe County for a hurricane rated at or above a Category 3. Evacuation becomes mandatory for everyone" (Monroe County).
Plan for days, and for fuel you can't buy. The outage is the short half of the problem; the 2012 survey shows the gasoline shortage outlasting it. A pack you can refill without a pump is the part of your plan a line at the station can't touch.
How to charge an e-bike when the grid is down
With the grid down, charge from what you stored and from the sun: a power station filled by a folding panel needs no fuel and feeds the charger your bike came with. A generator or a car works too, and both burn the gasoline you can no longer buy; a car's 12 V socket is also too small (Kia's limit).
| Route | What you need | What you get | What catches people out |
|---|---|---|---|
| Folding panel and power station | A 200 W panel, a station ($699 to $869 as a set), your own charger | a computed 10 to 40 miles a day | a Seattle December gives a quarter of a Phoenix June |
| A station filled in advance | A station charged before the storm | 640 Wh into your pack from a 1,000 Wh unit | one fill, and then it needs the sun too |
| Rooftop solar | A system built to run without the grid | a wall outlet that still works | a grid-connected array can disconnect in an outage |
| A generator | Fuel, and open air 20 feet from the house | a full refill in about 7 to 12 hours | carbon monoxide, and the fuel itself |
| Your car | A running engine and an outlet rated for your charger | a slow, costly refill | a 12 V socket stops at about 120 W |
| A second battery | The maker's own pack, bought ahead ($509 to $1,198.80) | one more charge | a swap means stopping, and the pack needs your charger too |
| Pedaling | Your legs | nothing back in the pack | none of the eight makers lists regenerative charging |
Solar charging: a folding panel and a power station
Start here, because nothing in this chain needs fuel. A folding panel fills a portable power station through the day, and the station's AC outlet runs the charger that came with your bike. CPSC's instruction is to "only use the charger provided with or recommended by the manufacturer" (CPSC), and this route keeps that charger in the chain.
Our solar figures use a 200 W panel, the size OutdoorGearLab's buying advice starts most people on. Two losses sit between that panel and your pack.
Jackery, a power-station maker, works its runtimes at "85% efficiency due to power loss during operation", OutdoorGearLab keeps "at least a 20% margin", and we use the lower 80%. An e-bike charger like Akyga's 54.6 V, 2 A unit is rated "Efficiency > 80 %". Multiply the two and 64% of the panel's energy reaches the pack, our working figure.
Check one number before you buy the station: its AC output has to exceed your charger's draw, up to about 137 W for a 48 V, 2 A charger, 147 W for the FLASH LITE ST's 52 V one, and 205 W for a 3 A one.
The mistake is sizing the panel to refill the pack in a day. Refilling 960 Wh in one day takes about 1,080 W of panel in a Seattle December and 271 W in a Phoenix June, and a 200 W panel simply refills less each day (the numbers by city).
A power station filled before the storm
A station charged while the grid is up is stored miles. Ready.gov's kit already asks for a "backup battery" for your phone (Ready.gov); this is the same idea, one size up. Our 64% chain sets what each size puts into your pack:
| Station size | Into your pack | Share of a 720 Wh pack | Share of a 960 Wh pack | Share of a 1,680 Wh pack |
|---|---|---|---|---|
| 500 Wh | 320 Wh | 0.4 | 0.3 | 0.2 |
| 1,000 Wh | 640 Wh | 0.9 | 0.7 | 0.4 |
| 2,000 Wh | 1,280 Wh | 1.8 | 1.3 | 0.8 |
Station sizes are what the unit holds, so read the second column before you buy. A 1,000 Wh unit fills 0.9 of a 720 Wh pack and 0.4 of a 1,680 Wh pack.
Rooftop solar only helps if it was built to run alone
A rooftop array can sit idle through a sunny blackout. The Department of Energy explains that grid-connected systems include "switches to disconnect your system from the grid in the event of a power surge or power failure (so repairmen are not electrocuted)" (DOE Energy Saver, archived copy).
Solar with batteries can keep going, "if they are designed to do so" (DOE Solar Energy Technologies Office). So ask your installer one question: which outlets in this house stay live in an outage? If the answer includes one in the garage, your charger and that outlet are the whole plan.
Your car: the 12-volt socket is too small
Kia's US manuals allow "12V electric accessories which are less than 10A" (Kia), and Nissan's manual for the 2025 Qashqai warns against exceeding "a 12 volt, 120 W (10 A) power draw", with the engine running (Nissan). A 48 V, 2 A charger can pull about 137 W and a 3 A charger about 205 W, before an inverter's own loss. That overruns the socket.
A vehicle with its own 120 V outlet may do better, and its manual gives the limit. Either way the engine has to run, because Kia warns that the battery can discharge with it off. An idling car burns about 0.3 gallons an hour (Argonne National Laboratory), so one full refill costs 2.0 to 3.3 gallons of the fuel you can't replace.
A generator, outside and 20 feet away
A generator will run these chargers, and it brings back both problems this page started with. It needs gasoline, and CPSC counts an average of nearly 100 deaths a year from carbon monoxide poisoning from portable generators (CPSC).
Run it "outside only, at least 20 feet away from the house" (CPSC); Ready.gov adds windows, doors and attached garages (Ready.gov). The mistake is the half-measure: CPSC says opening doors or windows "will not provide enough ventilation", and to keep it off the porch and out of the carport.
Pedal power: why riding won't refill the pack
None of the eight makers' pages we read lists regenerative charging, so pedaling and coasting put nothing back in the pack. A solar-powered e-bike, with the panel on the bike, doesn't close the gap either: at 15 mph the motor takes about 270 W, more than a 100 W panel is rated to make.
Pedaling a stationary generator works, slowly. An easy effort for an untrained 180 lb rider is about 130 W, half the critical power measured in Chorley et al., so 720 Wh takes 5.5 hours at the crank, before any generator or charger loss.
A second battery, and when a panel beats it
Seven of the eight picks have a spare pack their maker lists for that model:
| Spare pack | Fits | Price | Where to buy it |
|---|---|---|---|
| 48 V 20 Ah pack (960 Wh) | Garootan M-81 | $699 | Addmotor |
| 48 V 20 Ah pack (960 Wh) | D5 Pro | $589 | Himiway, sold out on November 7, 2026 |
| 48 V 35 Ah pack (1,680 Wh) | TIGER PLUS | $1,198.80 | our store |
| 48 V 15 Ah pack (720 Wh) | G30-CARGO 2.0 | $598.80 | our store |
| 48 V 20 Ah pack (960 Wh) | C3 Cargo | $589 | Himiway |
| 48 V 35 Ah pack (1,680 Wh) | TIGER RE | $1,198.80 | our store |
| 52 V 17 Ah pack (884 Wh) | FLASH LITE ST | $509 | Eunorau |
Read November 7, 2026. Where we don't stock a pack, the link goes to the maker's own page so you know it exists. Write to us before you order: the plug, the mount and the pack's color have to match your bike, and for the E-325 we'll check which pack fits.
The two Eunorau picks are built to run a second pack on the bike, and Eunorau prints the FLASH LITE ST's as 17 Ah and as 21 Ah. On the others, plan on stopping to swap. CPSC's rule for any spare is to use one "confirmed to be suitable for your device by the device manufacturer" (CPSC).
A spare gives you one more tankful on the day you need it, and a panel gives you a little more every day after. The packs above run $0.58 to $0.83 a watt-hour.
A station of about 1,000 Wh with a 200 W-class folding panel, sold as a set, ran $699 at EcoFlow, $769 at BLUETTI and $869 at Jackery on November 7, 2026. Each station is rated for 1,800 W or more of AC output, far above any charger here.
A set holds 655 to 809 Wh for your pack on our 64% chain, then adds 178 to 707 Wh a day. The lowest-priced set passes a 960 Wh spare after 1.7 days of a Seattle December and 0.4 of a Phoenix June. If you can buy only one upgrade, make it the set, and read our battery types guide for how the cells age.
One bike, one panel, one station. A 200 W panel and a 1,000 Wh station give any pick here a fuel-free refill for about $699 to $869 on top of the bike. The generator and the car stay as backups, and the socket stays out of the plan.
1,680 Wh, 7 gears and suspension at both ends, at $2,499, where 750 W is an e-bike. It ships free within the contiguous United States.
Buy the TIGER PLUS for the biggest pack with gearsHow many miles a day of sun buys in 10 US cities
A 200 W panel buys about 10 miles a day in a Seattle December and about 40 in a Phoenix June, computed from the federal PVWatts model, and the bike hardly matters, because every two-wheeled pick here uses about 18 Wh a mile. The trike, at 21 Wh a mile, gets 9 to 34.
Computed miles a day on a D5 Pro at 15 mph, December and June, from a fixed 200 W panel. NREL PVWatts v8; method below.
| City | December, Wh a day from the panel | June, Wh a day from the panel | December miles a day | June miles a day |
|---|---|---|---|---|
| Seattle, WA | 278 | 781 | 10 | 28 |
| Minneapolis, MN | 521 | 844 | 19 | 30 |
| New York, NY | 521 | 839 | 19 | 30 |
| Houston, TX | 633 | 877 | 22 | 31 |
| Charleston, SC | 651 | 883 | 23 | 31 |
| Asheville, NC | 674 | 858 | 24 | 31 |
| Tampa, FL | 792 | 845 | 28 | 30 |
| Denver, CO | 806 | 981 | 29 | 35 |
| Los Angeles, CA | 777 | 1,038 | 28 | 37 |
| Phoenix, AZ | 908 | 1,105 | 32 | 39 |
DC energy from a 200 W panel facing south at the city's latitude, after PVWatts' 14% default losses, then 64% of it into the pack. Miles are on a D5 Pro at 15 mph, flat, throttle only, 180 lb rider, 30 lb of gear.
Hurricane country does better than you might expect: a Tampa December (792 Wh a day) out-produces a Seattle June (781 Wh). These are typical-year figures, though, and a storm's own clouds will cut them (limitations).
Battery size sets how long a refill takes, and that is the number to compare between bikes:
| Bike | Battery | Days to refill, Seattle December | Days to refill, Phoenix June |
|---|---|---|---|
| G30-CARGO 2.0 | 672 Wh | 3.8 | 0.9 |
| Garootan M-81 | 720 Wh | 4.0 | 1.0 |
| FLASH LITE ST | 832 Wh | 4.7 | 1.2 |
| D5 Pro | 960 Wh | 5.4 | 1.4 |
| C3 Cargo | 960 Wh | 5.4 | 1.4 |
| E-325 | 960 Wh | 5.4 | 1.4 |
| TIGER PLUS | 1,680 Wh | 9.4 | 2.4 |
| TIGER RE | 1,680 Wh | 9.4 | 2.4 |
Days for a 200 W panel to refill an empty pack, with 64% of its energy reaching the pack. The E-325 carries the same 960 Wh as the D5 Pro, so its refill matches.
The panel sets your daily miles; the battery sets your patience. A 1,680 Wh pack takes 9.4 Seattle December days to refill from empty and carries 93 miles, so a big pack charged before the storm is worth more than a big pack charged during it.
1,680 Wh for $1,399, for riders 5 ft 1 in to 5 ft 9 in, where 750 W is an e-bike. It ships free within the contiguous United States.
Buy the TIGER RE for the most miles a dollar buysKeep the battery ready: storage, cold and floodwater
Store the pack the way its own maker says, top it up when a storm is forecast, charge it awake and above freezing, and never charge a pack that has been under water. Those habits come from the makers' manuals, CPSC and Florida's fire marshal, and none of them costs a dollar.
The four makers here print four different storage rules, so the mistake is treating one maker's advice as everyone's:
| Maker | What it says about storing the battery |
|---|---|
| Himiway | "store the battery with a full charge and charge it once a month" (D5 Pro manual) |
| Eunorau | past 2 weeks, "a cool, dry place with a 70%-80% charge remaining" (FAQ) |
| Addmotor | "Charge it to 40-60% before storage, and recharge it every two months" (battery guide) |
| Qiolor | "it should be supplemented regularly" (TIGER PLUS manual) |
When a storm is on the forecast, our own advice is to charge to full whichever maker you follow, the way Ready.gov asks for a full tank "if an evacuation seems likely" (Ready.gov). Then charge the power station too.
Charge awake and above freezing. CPSC's rule still holds in an emergency: "Always be present when charging micromobility products. Never charge them while sleeping or when you are not at home" (CPSC). Himiway's manual says to charge between 32°F and 104°F and also names 14°F as a lower limit (D5 Pro manual); plan on 32°F. In a cold house with no heat, warm the pack first, and see our winter e-bike guide.
After floodwater, leave it alone. Florida's fire marshal confirmed 16 lithium-ion battery fires tied to Helene's storm surge, and told residents with a flooded battery-powered vehicle or device to "unplug the vehicle or device and move it safely away from your home or apartment into a clear open space" (Florida Office of Insurance Regulation bulletin).
The same alert says, "Unplug and do not attempt to charge the vehicle." After Hurricane Ian the same office warned that vehicles submerged in salt water can go into "thermal runaway", when a battery starts to smoke or burn (bulletin). So get the bike above the water line before the surge arrives, and keep the pack out of the house if it ever goes under.
A rain rating is a different promise from a flood rating. Himiway's D5 Pro manual rates the bike "IPX4 Water Resistance" and asks owners not to park it "outdoors in cold or inclement weather for extended periods". Qiolor's page says the TIGER RE "is built to the IP5-rated standard" and adds, "please avoid prolonged or intentional immersion in water".
On SGS's guide to the ratings, level 4 covers water sprayed from all directions and level 5 low-pressure jets; immersion starts at level 7. Water-resistant is not waterproof, so plan on keeping every pick out of standing water.
What breaks, and what you can fix yourself
You can fix the parts that wear with ordinary bicycle tools: tires, tubes, brake pads, cables and chains, which Qiolor's warranty lists as "normal wear and tear parts". The electrical parts are the maker's own, so buy those before the storm. Our maintenance guide covers the first group.
Buy a second charger first. Every charging route on this page runs through the charger that came with your bike, and CPSC urges consumers not to use "universal" chargers (CPSC). One dead charger stops the whole plan.
We carry Eunorau's 48 V, 2 A charger at $58.80 and Qiolor's from $118.80, and Himiway lists its own for the D5 Pro and the C3 at $95.90. For the Addmotor pair, or to check a plug, write to us with your model.
Then carry what a flat needs. A flat is the breakdown you can finish at the roadside. Himiway sells a pair of D5 Pro tubes at $29, we carry Qiolor's fat-tire tubes at $46.80, and the size to match is the one on your own sidewall. The D5 Pro ships with a "16 in 1 Repair Tool", and Eunorau lists a tool kit with the FLASH LITE ST.
Leave the pack itself alone. CPSC says never to use a device with a pack "that has been modified or reworked by unqualified personnel or with repurposed or used cells" (CPSC), so treat a failed pack as a replacement, not a home repair. That is one more reason to price a spare now.
A dead motor or controller means you pedal. Qiolor lists a controller and a display for its TIGERs at $139 each, and a part in a box only helps if you bought it first. Far from home you pedal, which is the case for gears: the D5 Pro has 9, the Garootan, TIGER PLUS, G30, C3 and E-325 have 7, and the TIGER RE and FLASH LITE ST have one.
E-bike, plain bicycle or gas dirt bike?
A plain bicycle has nothing to run out, and a gas dirt bike runs until its tank is empty. An e-bike sits between them: it carries 400 lb or more and refills from the sun, and once its pack is empty it's a heavy bicycle. Which is best depends on how far, how much and how long.
| What matters | E-bike | Plain bicycle | Gas dirt bike |
|---|---|---|---|
| Runs on | Stored power and sun | Your legs | Gasoline |
| Refill with the pumps dark | A 200 W panel: a computed 10 to 40 miles a day | None needed | Only the fuel you stored |
| What stops it | An empty pack, then about 80 to 100 lb to pedal on two wheels | Tired legs or a flat | An empty tank |
| Best when | The load or the distance outgrows your legs | You travel light and the ground is flat | You have stored fuel and a short trip |
If you travel light on flat ground, a plain bicycle is the better survival machine, and we'd tell you so. The e-bike earns its place when you are hauling water for four or covering 53 miles in a day with a load, and that is what the picks here are built around. The mistake is assuming the motor makes the bike lighter when it stops: it's the other way around.
Is it legal? The 750-watt line and the third wheel
It depends on your state's words. The two 500 W picks count as e-bikes in 50 of the 51 jurisdictions, the five two-wheeled picks rated at 750 W in 31, and the trike in 27, because 19 states write "less than" or "fewer than" 750 watts (Florida's, for one) and a few set limits on wheels or weight.
Florida's definition reads "electric motor of less than 750 watts" (Fla. Stat. § 316.003(23)) and Texas's reads "an electric motor of fewer than 750 watts" (Tex. Transp. Code § 664.001(4)), so a motor rated at exactly 750 watts sits outside both. The mistake is reading a sale page's "750 W" as a promise about your state.
| Bike | Rated | Wheels | An e-bike in | Outside the definition in |
|---|---|---|---|---|
| D5 Pro | 500 W | 2 | 50 of 51 | New Jersey |
| G30-CARGO 2.0 | 500 W | 2 | 50 of 51 | New Jersey |
| Garootan M-81 | 750 W | 2 | 31 of 51 | 20 jurisdictions |
| TIGER PLUS | 750 W | 2 | 31 of 51 | 20 jurisdictions |
| C3 Cargo | 750 W | 2 | 31 of 51 | 20 jurisdictions |
| TIGER RE | 750 W | 2 | 31 of 51 | 20 jurisdictions |
| FLASH LITE ST | 750 W | 2 | 31 of 51 | 20 jurisdictions |
| E-325 | 750 W | 3 | 27 of 51 | 23 jurisdictions; Connecticut unsettled |
A motor rated at 750 W is outside the definition in Alabama, Arizona, Arkansas, Florida, Idaho, Illinois, Kansas, Louisiana, Maine, Mississippi, Missouri, New Hampshire, New York, Ohio, Tennessee, Texas, Vermont, West Virginia and Wyoming. Alaska and Kentucky define no e-bike at all, and both count here as inside.
New Jersey is the odd one: its definition covers "an electric motor that provides assistance only when the rider is pedaling" (P.L.2025, c.285), so every pick here with a throttle sits outside it (our New Jersey guide).
The trike has more lines to cross. Montana's definition says "two tandem wheels" and Rhode Island's "a two-wheel (2) vehicle". Pennsylvania's stops at a vehicle "weighing not more than 100 pounds", and the E-325 weighs 198. Connecticut's text leaves a three-wheeler open.
Pennsylvania's limit touches one more pick: the TIGER PLUS is 90 lb on Qiolor's page and 101.4 lb in its manual, so read that state's page before you buy.
These counts read each bike as it ships. Both Eunorau picks print settings above the default: the G30-CARGO 2.0's page reads "Class 2 Speed limited Unlockable" and the FLASH LITE ST's "Class 1/2/3/3C/4 Default: 2". Set one to assist past 20 mph and your state's rules for faster vehicles take over. California's definition also speaks to machines built to be modified (our California guide).
Outside a definition doesn't mean banned. It means the machine is treated as whatever that state's code puts it under, and registration or a license can follow. Read your own state in our 50-state e-bike law guide, and our mountain guide sets out each state's wording.
Guessing wrong has a price. New Jersey's act sets a fine not exceeding $50 for riding a low-speed electric bicycle or motorized bicycle without your license, insurance card and registration on you (P.L.2025, c.285). Nassau County's police have announced impoundment for Class 2 and Class 3 e-bikes on county roads and property (our New York guide).
A bug-out route through a national forest needs the same care: breaking a Forest Service prohibition carries "imprisonment of not more than six months or a fine" (36 CFR § 261.1b), so check the motor vehicle use map before you pencil a forest road into your way out (e-bikes on public land).
A grid-down checklist you can finish this weekend
Six jobs make up the plan, and you can do them all with the lights on. Do them in this order, because the bike sets the charger, the charger sets the station, and the station sets the panel you can use.
- Choose the bike for the job and your height (the picks), and check your state's words (the law).
- Read your charger's label for its amps, then buy a power station whose AC output clears that draw.
- Add a 200 W folding panel and run it for a sunny day in the yard, so you know what your setup delivers.
- Store the pack the way your maker says (the four rules), and charge everything when a storm is forecast.
- Pack what a bike needs: the charger, a second one if you can (what to buy), a tire repair kit and paper "local maps", which Ready.gov lists with a phone "backup battery" (Ready.gov).
- Keep the car at half a tank (Ready.gov), because the best plan has two ways out.
How we verified every number
The numbers on this page were read or computed from published data by scripts saved with it, most of them between November 2 and November 7, 2026:
- The shelf. Every active bike on our store, read from our catalog on November 7, 2026: 224 bikes, 148 of them adult bikes we recommend with a buyable variant. Where a listing leaves a test's field blank, the bike could not be scored: 29 on the bug-out test, 43 on the hauler test and 9 on the long-haul test.
- The bikes. Card figures come from each maker's own page, product record or manual, the pages read on November 6, 2026, with prices re-read on November 7, 2026, at our store and at each maker.
- Energy per mile. Published cycling physics (Martin et al., 1998) at 15 mph on the flat, with an upright rider's drag, a fat-tire rolling figure, an 80% motor and a 30 lb gear allowance we chose. Our figures sit within −2.4% to +6.4% of the range models in six of our own reviews, for the six picks that have one with a 15 mph row.
- Sun. NREL PVWatts v8 for 10 cities and 12 months: a standard fixed panel facing south at the city's latitude, with default losses of 14%. Four cities are places 2024's storms hit, and the rest span the country's sun and cloud.
- Losses. A power station's 80% (Jackery works at 85%, OutdoorGearLab keeps a 20% margin) and a charger's 80% from Akyga's listing, multiplied to 64%.
- Outages. EIA's Table 11.1 from Form EIA-861, with the figures released October 21, 2026, read beside EIA's own article on 2024.
- The law. Each bike's rated watts, top speed, weight and wheels through our shared 51-jurisdiction screener, with each state's own boundary word (electric bike laws).
- Stress rows. The motor model from our D5 Pro review, its ratios applied to this page's figure, with one input changed: gravel by Meyer, Kloss and Senner's ratios, cold by a measured cell's energy with denser air and stiffer tires, wind by air speed against the rider, and climbing as the extra energy of a 6% grade at 8 mph.
- Spares and setups. Spare packs, chargers and tubes read on November 7, 2026, from each maker's parts pages and our store; a pack is listed only where the maker's own words name the model. Set prices read that day at EcoFlow's, BLUETTI's and Jackery's own US stores.
- The sources. We consulted 71 sources: 64 were retrieved and are cited here, each listed under sources with the date we read it, and 7 were unreachable, because New York's statute site, Volvo's US manual, Grin Technologies' solar notes, Jackery's FAQ, the Florida CFO's press page, Bike Friday's site and the IEC's ratings page each refused or lost the page. New York's program is read from the state's open-data record, Florida's alerts from its insurance regulator's bulletins and the IP levels from SGS's guide; the others are not cited.
The data behind the energy and solar tables is published with this guide: every pick's energy figures (JSON) and solar output for 10 cities and 12 months (JSON).
Why buy it here
Every e-bike on this page ships free within the contiguous United States. We dispatch an order within 1–3 business days of confirming it, and most arrive within 5–10 business days after that (shipping policy). One exception for now: Addmotor has suspended shipments to New York City's five boroughs, so we can't deliver the Garootan M-81 or the E-325 there.
Check the box on delivery day. If the bike arrives damaged, note it with the carrier and send us photos within 48 hours of delivery, and we handle the claim from there (refund policy).
A fault under warranty starts with an email to us. We take it to the maker and coordinate the repair or the replacement part under the maker's warranty, whose terms set what it covers (refund policy; terms of service).
Pay with Shop Pay, Apple Pay, Google Pay or a card, as our checkout takes them.
Ask before you buy. Write to sales@redtailebikes.com with your height, your weight and what you plan to carry, or to support@redtailebikes.com about an order; we usually answer within one business day (contact). Our terms of service name the company behind the store.
Every maker on this page, with its range on our store and our profile of the brand:
- Himiway: the Himiway range · our Himiway profile
- Eunorau: the Eunorau range · our Eunorau profile
- Qiolor: the Qiolor range · our Qiolor profile
- Addmotor: the Addmotor range · our Addmotor profile
Shop by situation: fat-tire e-bikes · cargo e-bikes · every e-bike we sell
Questions people ask about e-bikes when the grid goes down
What is the best bike for the apocalypse?
The Himiway D5 Pro at $1,999 suits most riders: 4 in tires, 9 gears behind a mid-drive, 960 Wh and a 500 W rating that keeps it an e-bike in 50 of the 51 jurisdictions. If you travel light on flat ground, a plain bicycle needs no energy at all.
Is an e-bike a good bug-out vehicle?
Yes, for a load or a distance your legs can't manage, and if you can refill it. A D5 Pro covers a computed 53 miles a charge at 15 mph on the flat with 30 lb of gear, and a 200 W panel adds 10 to 40 miles a day. Keep a car with half a tank as well, as Ready.gov advises.
What is the most reliable e-bike?
We can't rank reliability, because we found no published failure rates to compare. What we can check is the hardware: all eight picks use hydraulic disc brakes, each clears a job test we set in advance (the tests), and seven have a spare pack listed for the model (spares). Buy for the job, then keep the maker's battery rules (storage).
Do gas pumps work without electricity?
Generally not: Florida's statute lists "all fuel pumps, dispensing equipment, lifesafety systems, and payment-acceptance equipment" among what a station must run on backup power (§ 526.143). Ready.gov warns stations may be "unable to pump gas during power outages" (Ready.gov). Stations with a transfer switch can run on a generator once one arrives.
Would gas vehicles be useless in an apocalypse?
No. A gas vehicle works until its tank is empty, and Ready.gov still tells you to keep a half tank. The limit is the refill: after Sandy, EIA estimated that 28% of stations in the New York City metropolitan area still had no gasoline for sale a week on (EIA). An e-bike's refill comes from a panel, at a computed 10 to 40 miles a day.
How do you charge an e-bike off grid?
Run your own charger from a power station, and refill the station from a folding solar panel. With a 200 W panel, about 64% of the energy reaches your pack, or a computed 10 to 40 miles a day (by city). A generator also works, outdoors and 20 feet from the house (CPSC).
Can you charge an e-bike with a solar panel?
Yes, through a power station. A 200 W panel makes 278 Wh a day in a Seattle December and 1,105 Wh in a Phoenix June on the federal PVWatts model, and about 64% of that reaches the pack: 10 to 40 miles a day on our picks at 15 mph (the table).
Can I directly charge my e-bike battery with a solar panel?
Not safely. CPSC says to use only the charger "provided with or recommended by the manufacturer", and a panel wired to the pack, even through an MPPT charge controller, skips it. A power station between the panel and that charger keeps the charger in the chain (solar).
How many watts do you need to charge an e-bike?
From the wall, up to about 137 W for a 48 V, 2 A charger and about 205 W for a 3 A one, assuming a charger that is 80% efficient. From the sun, more is faster: a 200 W panel refills a 960 Wh pack in 1.4 to 5.4 days, depending on city and season (the table).
Can a portable power station charge my e-bike battery?
Yes, if its AC output clears your charger's draw, up to about 205 W on these picks. Expect about 640 Wh into your pack from a 1,000 Wh station, so 0.9 of a 720 Wh pack (stations). A power bank can do it only if it has an AC outlet that clears the same draw.
Can you charge an e-bike from a car's 12 V socket?
Not with these chargers. Socket limits run about 120 W in the Kia and Nissan manuals we read, and a charger here can draw 137 to 205 W. Idling also burns about 0.3 gallons an hour, gasoline you may not be able to replace (your car).
How much wattage from a generator do you need to charge an e-bike?
About 137 to 205 W for one charger, plus whatever else you run on it. Run it outside, at least 20 feet from the house, and never in a garage or on a porch (CPSC).
Can you charge an e-bike while riding?
Not on these eight: none of the makers' pages we read lists regenerative charging. A panel carried on the bike can't keep up either, since the motor takes about 270 W at 15 mph (pedaling).
Is solar worth it versus just buying an extra battery?
If you can buy only one upgrade, make it a panel and a station. A spare runs $509 to $1,198.80 and is one more charge, while a set at $699 to $869 holds 655 to 809 Wh for your pack and adds 178 to 707 Wh a day. The lowest-priced set passes a 960 Wh spare after 1.7 days of a Seattle December (a second battery).
How do you charge an e-bike battery without its charger?
Don't improvise. CPSC urges consumers not to use "universal" chargers with these products because of the fire hazard. Pack the charger that came with your bike, and treat it as part of your kit.
How do you protect an e-bike in a hurricane?
Move it above the likely water line, unplug it, and charge the pack before the storm arrives. If it floods, Florida's fire marshal says to unplug it, move it away from your home into a clear open space and not to charge it (bulletin).
Can you repair an e-bike yourself?
Yes for the wear parts: tires, tubes, brake pads, cables and chains take ordinary bicycle tools. A motor, controller or display is a part swap, and a battery pack is a replacement, not a home repair (CPSC). Buy a second charger first, because every charging route runs through it (what breaks).
Can an e-bike pull a trailer?
Yes, where the maker lists a hitch for your bike. Eunorau's two-wheel trailer carries 200 lb, and Eunorau lists the G30-CARGO for its hitch adapter. At 15 mph on flat ground on the throttle, we compute 28 miles a charge with that load on one pack (past the rack). For any other pick, ask us before you buy a hitch.
How do you protect an e-bike from an EMP?
We found no published EMP test of an e-bike, so treat any promise with care. The closest federal record is the EMP Commission's 2008 test of 37 cars: those switched off showed no effects, and three running cars stalled at about 30 kV/m or above. Reading that across to a bike is our inference, so keep it switched off and unplugged, and remember that it still pedals.
What is the best bike for a zombie apocalypse?
The D5 Pro at $1,999, for the same reasons as any other emergency: 4 in tires, 9 gears that still work on a dead pack and a computed 53 miles a charge at 15 mph on the flat. Nobody has measured a zombie, so we can't compute the rest. The plan for a horde is the plan for a hurricane: leave early, with a full pack.
The bottom line
No grid. No gas. Still riding. That takes a bike, a panel and a power station, and the bike is the smallest decision of the three. Choose the D5 Pro unless your height, your load or your state says otherwise, then budget $699 to $869 for the panel and the station, add a second charger, and test the whole chain on a sunny day this month.
The whole plan starts at $1,798: a Garootan M-81 and the lowest-priced set we read.
You don't have to decide today. Send sales@redtailebikes.com your height, weight, state and load, and we'll name the bike that fits, or tell you that none here does. Every bike ships free within the contiguous United States, apart from the Addmotor pair in New York City (why).
A 130 N·m mid-drive on 4 in tires with 960 Wh, an e-bike in 50 of the 51 jurisdictions, for $1,999. It ships free within the contiguous United States.
Buy the D5 Pro, the grid-down bike for most ridersOr buy the Addmotor Garootan M-81, $1,099, if you stand 5 ft 4 in to 5 ft 9 in, or buy the Eunorau G30-CARGO 2.0, $1,444, if the job is hauling.
Limitations: what this guide could not check
Published data and a stated method sit behind the figures above, and a method only reaches so far. Each of these edges changes how far you should lean on a number.
- Computed from published figures. Every range and solar figure comes from published physics and the makers' figures, and none of them is a ride we timed. Real motors, tires and riders vary.
- A calm, flat ride. Card ranges assume the throttle alone at 15 mph on flat pavement, on a mild, still day. Pedaling stretches them, and the stress table shows what speed, load, gravel, wind and cold take away; sand, mud and snow aren't in it. The 30 lb of gear is our own allowance.
- The stress rows. The gravel ratios come from one study of a four-wheeled e-bike and one cyclist, applied here to a fat-tire figure, and the cold rows from one LG cell. Each row changes one input, and a real day stacks them. The hauler figures use this page's simpler model: the G30's 28 miles at full load match its review, and the C3's 40 sit under the 44 its review's fuller model gives.
- Prices move. Station, panel and spare prices are one day's reading in Black Friday season, so check them before you buy.
- Typical weather. PVWatts models a typical year on a fixed, south-facing panel with the tilt set to the city's latitude. A folding panel propped on a porch can do worse, and the days around a storm will be darker than the table.
- The 64% chain. It rests on one maker's and one reviewer's station figures and one charger's rating, standing in for the units you buy. A station's own charging loss isn't in it and the two figures sit at the low end, so treat it as a planning number.
- Borrowed charger efficiency. The 80% comes from Akyga's listing for a 54.6 V, 2 A unit; the chargers that ship with our picks may differ, so each outlet draw is an upper estimate. Qiolor gives charge times instead of a charger rating, so its two picks have no draw figure.
- The pedaling figure. It takes half the critical power Chorley et al. measured in twenty untrained men, and that half is our own choice of an easy effort, so your own output will differ.
- Screen fields. The shelf counts use our listings' figures, which leave some fields blank (how we verified); only the finalists were re-read at the maker for this page.
- Two figures from one maker. Addmotor prints 15Ah in the Garootan's specifications and 20Ah in its feature copy, and we use 15Ah. Himiway prints the C3's fork travel as 60 mm and as 80 mm, its tires as 20 × 3 in the specification and 20 × 4.0 on its parts pages, and the D5 Pro's charging floor as 32°F and 14°F. Eunorau prints the FLASH LITE ST's second pack as 17Ah and 21Ah, and the G30's charge time as 4 to 6 hours where 14 Ah at 2 A works out to 7. Qiolor's page and manual print different weights and loads for the TIGER PLUS, and its manual a 40 km/h design speed beside a page that says Class 2; the count here follows the page.
- Toughness. No test here measures crash strength or weather sealing. Tough means the published parts in our three job tests.
- The survey. EIA's 2012 figures come from a sample of stations, and more than half could not be reached on the first day.
- The law moves. Our screen read the definitions in force on November 6, 2026. Re-check a count here after a state rewords its e-bike definition, and any figure after a maker changes it or our price moves.
Source register
Each source below carries its tier: T1 is a law, a regulation or a government dataset; T2 a maker's or publisher's own page, manual or data, or a peer-reviewed study we compute from; T4 a published review, named in the sentence that uses it. We read each one on the date listed under References.
| Tier | Publisher | Source | What it supports |
|---|---|---|---|
| T1 | U.S. Energy Information Administration | Electric Power Annual (With Data for 2025), Table 11.1: Reliability metrics of U.S. distribution system | In 2024 the average US electricity customer lost power for 11.0 hours, the most of any year from 2015 to 2025 (EIA, Electric Power Annual, Table 11.1). |
| T1 | Ready.gov (FEMA, U.S. Department of Homeland Security) | Evacuation | Ready.gov's evacuation page adds the part that matters here: Gas stations may be closed during emergencies and unable to pump gas during power outages (Ready.gov). |
| T2 | Playcut | Playcut | image credit |
| T2 | Wikimedia Commons | File:Seven Mile Bridge, Florida Keys aerial (2003).jpg | image credit |
| T2 | Addmotor | Addmotor Garootan M-81 product page | Motor 750 W rear hub · Battery 48 V 15 Ah (720 Wh) · Gears Shimano 7-speed · Tires Kenda puncture-resistant 20 × 4.0 in |
| T2 | Himiway | Himiway D5 Pro product page | Motor 500 W mid-drive (1,300 W peak), 130 N·m · Battery 960 Wh · Gears 9 · Tires 26 × 4.0 in |
| T2 | Qiolor | Qiolor TIGER PLUS product page | Motor 750 W hub (1,100 W peak), 85 N·m · Battery 48 V 35 Ah (1,680 Wh) · Gears 7 · Tires 20 × 4.0 in |
| T2 | Qiolor | TIGER PLUS manual | Its page gives a 400 lb load and a weight of 90 lb; its manual gives 155 kg (341.7 lb) and 46 kg (101.4 lb). |
| T1 | U.S. Geological Survey | Water Density | A 440 lb rating, less a 180 lb rider, leaves 260 lb, about 31 gallons of water at 8.3 lb a gallon (USGS density table). |
| T1 | Ready.gov (FEMA, U.S. Department of Homeland Security) | Build A Kit | Ready.gov's kit calls for one gallon per person per day (Ready.gov), so that load is about a week of water for a family of four. |
| T2 | Eunorau | Eunorau G30-CARGO 2.0 product page | Eunorau's 440 lb covers rider, passengers, cargo and accessories together (its FAQ), so ask us what the rack itself should carry before you stack it, and put anything heavier on a trailer. |
| T2 | Himiway | Himiway C3 Cargo product page | Motor 750 W hub, 86 N·m · Battery 960 Wh · Gears Shimano Altus 7-speed · Tires 20 × 3.0 in |
| T2 | Addmotor | Addmotor E-325 product page | Motor 750 W rear hub (1,400 W peak) · Battery 48 V 20 Ah (960 Wh) · Gears Shimano Tourney 7-speed · Brakes 180 mm hydraulic on all three wheels · Tires 20 × 2.4 in front, 24 × 3.0 in rear |
| T2 | Eunorau | Eunorau two-wheel hunting trailer | We sell Eunorau's two-wheel hunting trailer at $336, rated for 200 lb and weighing 27.8 lb, and Eunorau lists the G30-CARGO among the bikes it hitches to with an M12 to M10 adapter at $26.40. |
| T2 | Eunorau | Eunorau M12 to M10 trailer hitch adapter | We sell Eunorau's two-wheel hunting trailer at $336, rated for 200 lb and weighing 27.8 lb, and Eunorau lists the G30-CARGO among the bikes it hitches to with an M12 to M10 adapter at $26.40. |
| T2 | Qiolor | Qiolor TIGER RE product page | Motor 750 W hub, 85 N·m · Battery 48 V 35 Ah (1,680 Wh) · Gears single speed · Tires 20 × 4.0 in |
| T2 | Redtail Electric Bikes USA | I Rode a 750W Retro eBike Off-Road and On / Qiolor Tiger RE | Our own ride: five minutes on a TIGER RE, off the pavement and on, below this card. |
| T2 | Eunorau | Eunorau FLASH LITE ST product page | Motor 52 V, 750 W hub, 92 N·m · Battery 52 V 16 Ah (832 Wh), 1,716 Wh with Eunorau's optional second pack at 17 Ah · Gears single speed · Tires CST 20 × 4.0 in |
| T2 | Procedia Engineering (Elsevier) | Meyer D, Kloss G, Senner V. What is Slowing Me Down? Estimation of Rolling Resistances During Cycling | Gravel multiplies rolling resistance by Meyer, Kloss and Senner's ratios from a four-wheeled e-bike, 1.20 for fine and 1.50 for coarse, which is our inference for these tires. |
| T2 | McMaster University (Mendeley Data) | LG 18650HG2 Li-ion Battery Data | The 32°F rows give the pack a measured LG cell's 89% of its energy, with denser air and stiffer tires. |
| T1 | Florida Legislature | Florida Statutes (2026), § 526.143, Alternate generated power capacity for motor fuel dispensing facilities | Florida's statute lists what a station has to power: all fuel pumps, dispensing equipment, lifesafety systems, and payment-acceptance equipment (Fla. Stat. § 526.143). |
| T1 | New York State Department of Agriculture and Markets | Alternate Generated Power Source at Retail Gasoline Outlets (open-data register) | New York's FuelNY program uses the same idea: a station on its list has a transfer switch and a plan to bring in a generator within 24 hours of an energy emergency declaration, and the state's register lists 924 stations (New York's open-data register). |
| T1 | U.S. Energy Information Administration | Today in Energy: Gasoline availability in the New York metropolitan area after Hurricane Sandy | Only 3% told EIA that a lack of power was the reason, and 10% had power but no gasoline (EIA, Today in Energy). |
| T1 | U.S. Energy Information Administration | Today in Energy: U.S. electricity customers averaged 11 hours of interruptions in 2024 | Hurricane Beryl, Texas. 2.6 million customers without power (EIA). |
| T1 | Monroe County, Florida | Shelters | Evacuation becomes mandatory for everyone (Monroe County). |
| T2 | Kia America | Owner's manual (2022, CD), Power outlet | A generator or a car works too, and both burn the gasoline you can no longer buy; a car's 12 V socket is also too small (Kia's limit). |
| T1 | U.S. Consumer Product Safety Commission | Micromobility Information Center | CPSC's instruction is to only use the charger provided with or recommended by the manufacturer (CPSC), and this route keeps that charger in the chain. |
| T4 | OutdoorGearLab | How to Choose the Best Power Station | Our solar figures use a 200 W panel, the size OutdoorGearLab's buying advice starts most people on. |
| T2 | Jackery | What Can Jackery 1000 Plus Run? | Jackery, a power-station maker, works its runtimes at 85% efficiency due to power loss during operation, OutdoorGearLab keeps at least a 20% margin, and we use the lower 80%. |
| T2 | Akyga | Power supply AK-EV-05, 54.6 V, 2 A, 110 W | An e-bike charger like Akyga's 54.6 V, 2 A unit is rated Efficiency > 80 %. |
| T1 | U.S. Department of Energy | Energy Saver: Grid-Connected Renewable Energy Systems | The Department of Energy explains that grid-connected systems include switches to disconnect your system from the grid in the event of a power surge or power failure (so repairmen are not electrocuted) (DOE Energy Saver, archived copy). |
| T1 | U.S. Department of Energy, Solar Energy Technologies Office | Solar Integration: Inverters and Grid Services Basics | Solar with batteries can keep going, if they are designed to do so (DOE Solar Energy Technologies Office). |
| T2 | Nissan | Owner's manual, 2025 Qashqai, Power outlets | Kia's US manuals allow 12V electric accessories which are less than 10A (Kia), and Nissan's manual for the 2025 Qashqai warns against exceeding a 12 volt, 120 W (10 A) power draw, with the engine running (Nissan). |
| T1 | Argonne National Laboratory (U.S. Department of Energy) | Idling handout | An idling car burns about 0.3 gallons an hour (Argonne National Laboratory), so one full refill costs 2.0 to 3.3 gallons of the fuel you can't replace. |
| T1 | U.S. Consumer Product Safety Commission | As Winter Storms Continue, CPSC Urges Families to Take Steps to Prevent Carbon Monoxide Poisoning and Fires | It needs gasoline, and CPSC counts an average of nearly 100 deaths a year from carbon monoxide poisoning from portable generators (CPSC). |
| T1 | Ready.gov (FEMA, U.S. Department of Homeland Security) | Power Outages | Run it outside only, at least 20 feet away from the house (CPSC); Ready.gov adds windows, doors and attached garages (Ready.gov). |
| T2 | European Journal of Applied Physiology | Chorley A, Bott RP, Marwood S, Lamb KL. Physiological and anthropometric determinants of critical power, W' and the reconstitution of W' in trained and untrained male cyclists | An easy effort for an untrained 180 lb rider is about 130 W, half the critical power measured in Chorley et al., so 720 Wh takes 5.5 hours at the crank, before any generator or charger loss. |
| T2 | Addmotor | Addmotor 48V 20Ah Samsung UL-Certified Battery Pack | 48 V 20 Ah pack (960 Wh): Garootan M-81 |
| T2 | Himiway | Himiway Extra Battery Pack | 48 V 20 Ah pack (960 Wh): D5 Pro |
| T2 | Eunorau | Eunorau 52V17Ah battery for FLASH | 52 V 17 Ah pack (884 Wh): FLASH LITE ST |
| T2 | EcoFlow | EcoFlow US store, a 1,024 Wh power station and 220 W panel set | A station of about 1,000 Wh with a 200 W-class folding panel, sold as a set, ran $699 at EcoFlow, $769 at BLUETTI and $869 at Jackery on November 7, 2026. |
| T2 | BLUETTI | BLUETTI US store, a 1,152 Wh power station and 200 W panel set | A station of about 1,000 Wh with a 200 W-class folding panel, sold as a set, ran $699 at EcoFlow, $769 at BLUETTI and $869 at Jackery on November 7, 2026. |
| T2 | Jackery | Jackery US store, a 1,264 Wh power station and two 100 W panels | A station of about 1,000 Wh with a 200 W-class folding panel, sold as a set, ran $699 at EcoFlow, $769 at BLUETTI and $869 at Jackery on November 7, 2026. |
| T1 | National Laboratory of the Rockies (formerly NREL), U.S. Department of Energy | PVWatts API, version 8 | A 200 W panel buys about 10 miles a day in a Seattle December and about 40 in a Phoenix June, computed from the federal PVWatts model, and the bike hardly matters, because every two-wheeled pick here uses about 18 Wh a mile. |
| T2 | Himiway | Owner's manual, D5 Pro | Himiway: store the battery with a full charge and charge it once a month (D5 Pro manual) |
| T2 | Eunorau | FAQs | Eunorau: past 2 weeks, a cool, dry place with a 70%-80% charge remaining (FAQ) |
| T2 | Addmotor | A Complete Guide to E-Bike Battery Maintenance | Addmotor: Charge it to 40-60% before storage, and recharge it every two months (battery guide) |
| T1 | Florida Office of Insurance Regulation | Consumer alert with the State Fire Marshal's safety tips (Hurricane Helene) | Florida's fire marshal confirmed 16 lithium-ion battery fires tied to Helene's storm surge, and told residents with a flooded battery-powered vehicle or device to unplug the vehicle or device and move it safely away from your home or apartment into a clear open space (Florida Office of Insurance Regulation bulletin). |
| T1 | Florida Office of Insurance Regulation | Consumer alert on electric vehicle safety (Hurricane Ian) | After Hurricane Ian the same office warned that vehicles submerged in salt water can go into thermal runaway, when a battery starts to smoke or burn (bulletin). |
| T2 | SGS | Guide to IP Ratings | On SGS's guide to the ratings, level 4 covers water sprayed from all directions and level 5 low-pressure jets; immersion starts at level 7. |
| T2 | Qiolor | Warranty | You can fix the parts that wear with ordinary bicycle tools: tires, tubes, brake pads, cables and chains, which Qiolor's warranty lists as normal wear and tear parts. |
| T1 | U.S. Consumer Product Safety Commission | CPSC Urges Consumers to Not Buy or Use "Universal" Chargers with Micromobility Products Due to Fire Hazard | Every charging route on this page runs through the charger that came with your bike, and CPSC urges consumers not to use universal chargers (CPSC). |
| T2 | Himiway | Himiway Charger | We carry Eunorau's 48 V, 2 A charger at $58.80 and Qiolor's from $118.80, and Himiway lists its own for the D5 Pro and the C3 at $95.90. |
| T2 | Himiway | Himiway Inner Tube | Himiway sells a pair of D5 Pro tubes at $29, we carry Qiolor's fat-tire tubes at $46.80, and the size to match is the one on your own sidewall. |
| T2 | Qiolor | Qiolor Motor Controller | Qiolor lists a controller and a display for its TIGERs at $139 each, and a part in a box only helps if you bought it first. |
| T2 | Qiolor | Qiolor display | Qiolor lists a controller and a display for its TIGERs at $139 each, and a part in a box only helps if you bought it first. |
| T1 | Florida Legislature | Florida Statutes (2026), § 316.003, Definitions | The two 500 W picks count as e-bikes in 50 of the 51 jurisdictions, the five two-wheeled picks rated at 750 W in 31, and the trike in 27, because 19 states write less than or fewer than 750 watts (Florida's, for one) and a few set limits on wheels or weight. |
| T1 | Texas Legislature | Texas Transportation Code, Chapter 664 | Florida's definition reads electric motor of less than 750 watts (Fla. Stat. § 316.003(23)) and Texas's reads an electric motor of fewer than 750 watts (Tex. Transp. Code § 664.001(4)), so a motor rated at exactly 750 watts sits outside both. |
| T1 | New Jersey Legislature | P.L.2025, c.285 | New Jersey is the odd one: its definition covers an electric motor that provides assistance only when the rider is pedaling (P.L.2025, c.285), so every pick here with a throttle sits outside it (our New Jersey guide). |
| T1 | Montana Legislature | Montana Code Annotated § 61-8-102 | Montana's definition says two tandem wheels and Rhode Island's a two-wheel (2) vehicle. |
| T1 | Rhode Island General Assembly | R.I. Gen. Laws § 31-1-3 | Montana's definition says two tandem wheels and Rhode Island's a two-wheel (2) vehicle. |
| T1 | Pennsylvania General Assembly | 75 Pa.C.S. § 102 | Pennsylvania's stops at a vehicle weighing not more than 100 pounds, and the E-325 weighs 198. |
| T1 | Connecticut General Assembly | C.G.S. § 14-1 | Connecticut's text leaves a three-wheeler open. |
| T1 | eCFR (Office of the Federal Register) | 36 CFR § 261.1b, Penalty | A bug-out route through a national forest needs the same care: breaking a Forest Service prohibition carries imprisonment of not more than six months or a fine (36 CFR § 261.1b), so check the motor vehicle use map before you pencil a forest road into your way out (e-bikes on public land). |
| T2 | Journal of Applied Biomechanics | Martin JC, Milliken DL, Cobb JE, McFadden KL, Coggan AR. Validation of a mathematical model for road cycling power | Published cycling physics (Martin et al., 1998) at 15 mph on the flat, with an upright rider's drag, a fat-tire rolling figure, an 80% motor and a 30 lb gear allowance we chose. |
| T2 | Redtail eBikes | Redtail eBikes grid-down energy figures, the eight picks (CSV) | The data behind the energy and solar tables is published with this guide: every pick's energy figures (JSON) and solar output for 10 cities and 12 months (JSON). |
| T2 | Redtail eBikes | Redtail eBikes grid-down energy figures, the eight picks (JSON) | The data behind the energy and solar tables is published with this guide: every pick's energy figures (JSON) and solar output for 10 cities and 12 months (JSON). |
| T2 | Redtail eBikes | Redtail eBikes solar output, 10 US cities by month (CSV) | The data behind the energy and solar tables is published with this guide: every pick's energy figures (JSON) and solar output for 10 cities and 12 months (JSON). |
| T2 | Redtail eBikes | Redtail eBikes solar output, 10 US cities by month (JSON) | The data behind the energy and solar tables is published with this guide: every pick's energy figures (JSON) and solar output for 10 cities and 12 months (JSON). |
| T1 | Commission to Assess the Threat to the United States from Electromagnetic Pulse (EMP) Attack | Report of the Commission: Critical National Infrastructures | The closest federal record is the EMP Commission's 2008 test of 37 cars: those switched off showed no effects, and three running cars stalled at about 30 kV/m or above. |
References
The numbered list gives every source this page cites in full, with its publisher, its date and the date we read it.
- U.S. Energy Information Administration. Electric Power Annual (With Data for 2025), Table 11.1: Reliability metrics of U.S. distribution system. SAIDI with and without major event days, IEEE method, 2015-2025. October 21, 2026. Accessed November 3, 2026.
- Ready.gov (FEMA, U.S. Department of Homeland Security). Evacuation. 'If you have a car' list. updated 2026-03-20. Accessed November 6, 2026.
- Playcut. Playcut. home page. undated. Accessed November 6, 2026.
- Wikimedia Commons. File:Seven Mile Bridge, Florida Keys aerial (2003).jpg. file page: United States Department of Transportation, public domain; Federal Highway Administration credit. March 20, 2003. Accessed November 6, 2026.
- Addmotor. Addmotor Garootan M-81 product page. buy box, specification strip and rendered Size & Fit and Technical tabs. live product page. Accessed November 6, 2026.
- Himiway. Himiway D5 Pro product page. specification table and product record. live product page. Accessed November 6, 2026.
- Qiolor. Qiolor TIGER PLUS product page. specification list, FAQ and product record. live product page. Accessed November 6, 2026.
- Qiolor. TIGER PLUS manual. parameter page; battery notes. undated. Accessed November 6, 2026.
- U.S. Geological Survey. Water Density. table of density and weight by temperature (62.37 lb per cubic foot at 60 °F). current. Accessed November 6, 2026.
- Ready.gov (FEMA, U.S. Department of Homeland Security). Build A Kit. Basic disaster supplies list. current. Accessed November 6, 2026.
- Eunorau. Eunorau G30-CARGO 2.0 product page. specification table, FAQ and product record. live product page. Accessed November 6, 2026.
- Himiway. Himiway C3 Cargo product page. specification table and product record. live product page. Accessed November 6, 2026.
- Addmotor. Addmotor E-325 product page. buy box, specification strip and rendered Size & Fit and Technical tabs. live product page. Accessed November 6, 2026.
- Eunorau. Eunorau two-wheel hunting trailer. specification, read 2026-11-07. live product page. Accessed November 7, 2026.
- Eunorau. Eunorau M12 to M10 trailer hitch adapter. fit list, read 2026-11-07. live product page. Accessed November 7, 2026.
- Qiolor. Qiolor TIGER RE product page. specification list, FAQ and product record. live product page. Accessed November 6, 2026.
- Redtail Electric Bikes USA. I Rode a 750W Retro eBike Off-Road and On | Qiolor Tiger RE. 4:59; chapters 1:07 field, 2:50 construction gravel, 3:15 pavement. September 22, 2026. Accessed November 7, 2026.
- Eunorau. Eunorau FLASH LITE ST product page. specification table and product record. live product page. Accessed November 6, 2026.
- Procedia Engineering (Elsevier). Meyer D, Kloss G, Senner V. What is Slowing Me Down? Estimation of Rolling Resistances During Cycling. abstract; volume 147, pages 526-531. 2016. Accessed November 7, 2026.
- McMaster University (Mendeley Data). LG 18650HG2 Li-ion Battery Data. 0.5C discharge files, energy relative to 25 C. 2020. Accessed September 23, 2026.
- Florida Legislature. Florida Statutes (2026), § 526.143, Alternate generated power capacity for motor fuel dispensing facilities. subsections (2), (3)(a), (5)(a). 2026. Accessed November 3, 2026.
- New York State Department of Agriculture and Markets. Alternate Generated Power Source at Retail Gasoline Outlets (open-data register). dataset description and row count. updated 2026-08-06. Accessed November 3, 2026.
- U.S. Energy Information Administration. Today in Energy: Gasoline availability in the New York metropolitan area after Hurricane Sandy. daily table, November 2-9, 2012; final report November 9. November 9, 2012. Accessed November 6, 2026.
- U.S. Energy Information Administration. Today in Energy: U.S. electricity customers averaged 11 hours of interruptions in 2024. body: 11 hours; 80% from major events; Beryl 2.6 million, Helene 5.9 million in 10 states, Milton 3.4 million; South Carolina nearly 53 hours. December 1, 2025. Accessed November 3, 2026.
- Monroe County, Florida. Shelters. Category 3, 4 & 5 Hurricane Shelters. current. Accessed November 6, 2026.
- Kia America. Owner's manual (2022, CD), Power outlet. caution notes. 2022. Accessed November 3, 2026.
- U.S. Consumer Product Safety Commission. Micromobility Information Center. safety tips. current. Accessed November 3, 2026.
- OutdoorGearLab. How to Choose the Best Power Station. 'at least a 20% margin'; 'a 200-watt solar panel'. current. Accessed November 6, 2026.
- Jackery. What Can Jackery 1000 Plus Run?. formula note: 'calculated considering 85% efficiency due to power loss during operation'. current. Accessed November 6, 2026.
- Akyga. Power supply AK-EV-05, 54.6 V, 2 A, 110 W. specification table: 'Efficiency > 80 %'. current. Accessed November 6, 2026.
- U.S. Department of Energy. Energy Saver: Grid-Connected Renewable Energy Systems. Equipment Required for Grid Connection. capture of 2026-01-01. Accessed November 6, 2026.
- U.S. Department of Energy, Solar Energy Technologies Office. Solar Integration: Inverters and Grid Services Basics. 'What Does an Inverter Do?'. current. Accessed November 3, 2026.
- Nissan. Owner's manual, 2025 Qashqai, Power outlets. caution notes. 2025. Accessed November 3, 2026.
- Argonne National Laboratory (U.S. Department of Energy). Idling handout. 'Idling a car wastes about 0.3 gal/h'. undated. Accessed November 6, 2026.
- U.S. Consumer Product Safety Commission. As Winter Storms Continue, CPSC Urges Families to Take Steps to Prevent Carbon Monoxide Poisoning and Fires. release: 'nearly 100'; 'at least 20 feet away from the house'. January 19, 2024. Accessed November 3, 2026.
- Ready.gov (FEMA, U.S. Department of Homeland Security). Power Outages. Generator Safety. updated 2026-06-04. Accessed November 3, 2026.
- European Journal of Applied Physiology. Chorley A, Bott RP, Marwood S, Lamb KL. Physiological and anthropometric determinants of critical power, W' and the reconstitution of W' in trained and untrained male cyclists. volume 120, issue 11, pages 2349-2359, Table 1. August 9, 2020. Accessed November 6, 2026.
- Addmotor. Addmotor 48V 20Ah Samsung UL-Certified Battery Pack. fit line and buy box, read 2026-11-07. live product page. Accessed November 7, 2026.
- Himiway. Himiway Extra Battery Pack. variants by model, read 2026-11-07. live product page. Accessed November 7, 2026.
- Eunorau. Eunorau 52V17Ah battery for FLASH. compatibility list, read 2026-11-07. live product page. Accessed November 7, 2026.
- EcoFlow. EcoFlow US store, a 1,024 Wh power station and 220 W panel set. variants and prices, read 2026-11-07. live product page. Accessed November 7, 2026.
- BLUETTI. BLUETTI US store, a 1,152 Wh power station and 200 W panel set. variants and prices, read 2026-11-07. live product page. Accessed November 7, 2026.
- Jackery. Jackery US store, a 1,264 Wh power station and two 100 W panels. variants and prices, read 2026-11-07. live product page. Accessed November 7, 2026.
- National Laboratory of the Rockies (formerly NREL), U.S. Department of Energy. PVWatts API, version 8. dc_monthly, 10 cities, standard module, fixed open rack, azimuth 180, tilt at latitude, 14% losses. current. Accessed November 3, 2026.
- Himiway. Owner's manual, D5 Pro. battery charging and storage. undated. Accessed November 6, 2026.
- Eunorau. FAQs. battery life. current. Accessed November 6, 2026.
- Addmotor. A Complete Guide to E-Bike Battery Maintenance. Proper Storage for Maximum Battery Life. undated. Accessed November 6, 2026.
- Florida Office of Insurance Regulation. Consumer alert with the State Fire Marshal's safety tips (Hurricane Helene). alert text. October 4, 2024. Accessed November 6, 2026.
- Florida Office of Insurance Regulation. Consumer alert on electric vehicle safety (Hurricane Ian). safety tips. 2022. Accessed November 6, 2026.
- SGS. Guide to IP Ratings. second-numeral table, levels 4 to 7. 2018. Accessed November 7, 2026.
- Qiolor. Warranty. exclusions 1.3: normal wear and tear parts. live page. Accessed September 25, 2026.
- U.S. Consumer Product Safety Commission. CPSC Urges Consumers to Not Buy or Use "Universal" Chargers with Micromobility Products Due to Fire Hazard. release. September 5, 2024. Accessed November 3, 2026.
- Himiway. Himiway Charger. variants by model, read 2026-11-07. live product page. Accessed November 7, 2026.
- Himiway. Himiway Inner Tube. variants by model, read 2026-11-07. live product page. Accessed November 7, 2026.
- Qiolor. Qiolor Motor Controller. variants by model, read 2026-11-07. live product page. Accessed November 7, 2026.
- Qiolor. Qiolor display. compatible models, read 2026-11-07. live product page. Accessed November 7, 2026.
- Florida Legislature. Florida Statutes (2026), § 316.003, Definitions. subsection (23), electric bicycle. 2026. Accessed November 6, 2026.
- Texas Legislature. Texas Transportation Code, Chapter 664. § 664.001, electric bicycle. current. Accessed November 6, 2026.
- New Jersey Legislature. P.L.2025, c.285. R.S. 39:1-1, low-speed electric bicycle. 2026-01. Accessed November 6, 2026.
- Montana Legislature. Montana Code Annotated § 61-8-102. subsection (7). current. Accessed November 6, 2026.
- Rhode Island General Assembly. R.I. Gen. Laws § 31-1-3. subsection (g). current. Accessed November 6, 2026.
- Pennsylvania General Assembly. 75 Pa.C.S. § 102. 'Pedalcycle with electric assist'. current. Accessed November 6, 2026.
- Connecticut General Assembly. C.G.S. § 14-1. subsections (13)-(15), (31). current. Accessed November 6, 2026.
- eCFR (Office of the Federal Register). 36 CFR § 261.1b, Penalty. § 261.1b; 89 FR 92815. November 25, 2024. Accessed October 31, 2026.
- Journal of Applied Biomechanics. Martin JC, Milliken DL, Cobb JE, McFadden KL, Coggan AR. Validation of a mathematical model for road cycling power. volume 14, issue 3, pages 276-291. 1998. Accessed November 6, 2026.
- Redtail eBikes. Redtail eBikes grid-down energy figures, the eight picks (CSV). every row, computed by the scripts named in its header. November 6, 2026. Accessed November 6, 2026.
- Redtail eBikes. Redtail eBikes grid-down energy figures, the eight picks (JSON). every row, computed by the scripts named in its header. November 6, 2026. Accessed November 6, 2026.
- Redtail eBikes. Redtail eBikes solar output, 10 US cities by month (CSV). every row, computed by the scripts named in its header. November 6, 2026. Accessed November 6, 2026.
- Redtail eBikes. Redtail eBikes solar output, 10 US cities by month (JSON). every row, computed by the scripts named in its header. November 6, 2026. Accessed November 6, 2026.
- Commission to Assess the Threat to the United States from Electromagnetic Pulse (EMP) Attack. Report of the Commission: Critical National Infrastructures. Chapter 6, Automobiles and Trucks, pages 115-116. 2008-04. Accessed November 7, 2026.































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