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Electric bike range: watt hours, pedal assist and what drains the battery

The range on an e-bike listing is real, but it comes from one gentle way of riding. Here is how to turn it into the miles you will actually get.

Published Oct 7, 20266 min read

The short answer

Electric bike range depends on battery size, how much you pedal and how you ride. The e-bikes we carry list from 20 to about 124 miles, but those figures usually come from pedal assist in a low level. On the throttle alone, expect roughly half: Hiboy rates the EX11 at up to 100 miles with pedal assist and 53 miles on the throttle. Compare batteries in watt hours, and plan on fewer miles in cold, hilly or windy riding.

  • Watt hours (volts times amp hours) are the fairest way to compare two batteries.
  • Pedal assist can go roughly twice as far as the throttle alone on the same battery.
  • Speed, weight, hills, wind, cold and soft tires all cut into range.
  • A spare or second battery is safe only if the maker designed it for your model.

Watt hours: the number that matters

Watt hours (Wh) measure how much energy a battery holds. Multiply the voltage by the amp hours. A 48V 18Ah pack holds 864Wh, and a 60V 30Ah pack holds 2,016Wh. Two bikes with the same voltage can have very different ranges because their amp hours differ.

Here is how battery size lines up with listed range on a few of our models:

More watt hours do not always mean more listed miles. The Xafari holds more energy than the EX11 but lists fewer miles, because each maker tests with its own rider weight, speed and assist level. Fat tires, motor power and top speed change consumption too. Use watt hours to compare batteries, and treat the listed miles as a best case.

Pedal assist vs throttle

The biggest factor you control is how much you pedal. With pedal assist, your legs share the work and the motor runs at part power. On the throttle alone, the battery does it all. Makers that list both figures show the gap clearly:

  • Hiboy EX11: up to 100 miles with pedal assist and up to 53 miles on the throttle, both with a 165 lb rider.
  • Hiboy EX9: 62 miles power assisted and 31 miles on electric power alone, with a 143 lb rider.
  • Hiboy EX6: 75 miles listed, and 41 miles on electric power alone with a 165 lb rider.
  • NANROBOT N1: up to 40 miles with pedal assist and about 15.5 miles on the throttle.
  • WEPED F1: about 124 miles with pedal assist and about 75 miles on the throttle.

The assist level matters as well. The lowest level stretches the battery furthest, and the highest can drain it nearly as fast as the throttle. If you want the headline number, pedal steadily in a low level and save the higher levels for hills.

A quick estimate: divide the watt hours by 15 to 30Wh per mile for moderate pedaling, and use a higher figure on the throttle. A 720Wh battery at 20Wh per mile gives about 36 miles. The EX11’s 100 mile rating works out to under 9Wh per mile, which shows how gentle test riding is.

What drains electric bike range

  • Speed. Air resistance climbs steeply as you go faster. Holding 28 mph on a class 3 bike uses far more energy per mile than cruising at 18 mph.
  • Weight. Rider, bags, cargo and passenger all count. Hiboy’s figures use 143 lb and 165 lb riders, so heavier riders and loaded cargo bikes should expect less.
  • Hills and stop-and-go riding. Climbing and pulling away from lights take the most power.
  • Wind. A steady headwind works like a long, gentle hill.
  • Cold. Lithium-ion batteries deliver less below about 50°F. Keep the battery indoors in winter and fit it just before you ride.
  • Tires. Soft tires drag. Check the pressure weekly, and expect fat tires to use a little more energy on smooth pavement than narrower ones.
  • Battery age. Capacity falls slowly over hundreds of charge cycles.

Range extenders, second batteries and bigger packs

The safest way to add range is a battery the maker designed for your model. A few of our e-bikes are built for it:

  • The Riding’times GT33 comes in single battery and extra battery versions. Its removable 48V 27Ah pack is dual battery ready, a spare rack holds the second pack, and the maker lists 50 to 100 miles.
  • The AOTOS FLUX X26 comes with two battery sizes: 48V 18Ah on the X26, rated up to 50 miles, and 48V 21Ah (1,008Wh) on the X26 Pro, rated up to 70 miles.
  • The Segway Xyber lists 1,440Wh per battery, and Segway quotes its 6000W peak power with two batteries. It is sold for off-road use only.
  • The Teewing T20 folding bike offers a 36V 7Ah or 9.6Ah battery, so you can choose a lighter or a longer range setup.

A removable battery makes a spare practical: charge one while you ride the other. Never wire in a battery, or use a charger, that was not made for your bike. Mismatched packs are a fire risk and usually end the warranty. If you already own a bike and want a spare, contact us and ask whether the maker offers one.

A faster charger shortens the wait, not the range. The WEPED F1, for example, is offered with a 4A or a 15A charger.

Charging time and battery habits

Listed charge times run from about 3.7 hours on the Segway Xyber to 9 to 10 hours on the Hiboy EX11. Most of our commuters take about 5.5 to 8 hours, so an overnight or workday charge covers it.

Battery life comes down to the same habits as on an electric scooter: charge with the supplied charger, avoid running the battery flat, keep it cool and store it about half charged. Our battery care guide and our guide to how long batteries last cover both in detail.

How much range you need

Map your longest regular round trip, then double it. That margin covers winter, wind, a heavier bag and the slow loss of capacity as the battery ages. If you ride mostly on the throttle, compare the throttle figure where the maker lists one, or halve the headline number.

Listed range across our electric bikes, from a compact folder to a long range moped style model. The GT33 row shows a dash for motor power. Riding’times lists 1,350 W peak.
ModelTop speed (mph)Range (miles)Motor power (W)
Hiboy C1 Folding Electric Bike2026.2648
Hiboy EX9 Urban Commuter Electric Bike2062750
Segway Myon Electric Bike28801,500
Segway Xafari Electric Bike2088750
Hiboy EX11 Full Suspension Electric Bike20100880
GT33 All-Terrain Cafe Racer Cargo Electric Bike3150–
WEPED F1 Electric Bike50124.3–

Maker figures, checked September 2026. Real range and speed depend on rider weight, terrain, temperature and riding mode.

For a daily ride, our sibling guide to commuter electric bikes shows what else to look for, and the electric bike maintenance checklist keeps soft tires and dragging brakes from costing you miles. Browse every model by range in the electric bike shop.

Questions riders ask

How far can an electric bike go on one charge?

The e-bikes we carry list from 20 to about 124 miles. Real range is usually lower: plan on fewer miles in cold weather, on hills, at high speed or on the throttle.

Does using the throttle reduce range?

Yes, a lot. Makers that list both figures show the throttle giving roughly half the pedal assist range, such as 53 versus 100 miles on the Hiboy EX11.

Can I add a second battery to my electric bike?

Only if the maker sells one designed for your model, such as the extra battery version of the Riding’times GT33. Never fit a battery or charger that was not made for your bike.

Why is my e-bike range lower in winter?

Lithium-ion batteries deliver less energy when they are cold. Keep the battery indoors, charge it at room temperature and expect fewer miles until it warms up.

Does the pedal assist level matter?

Yes. The lowest level stretches the battery furthest, and the highest can drain it nearly as fast as the throttle.

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