How much range does an e-bike lose in cold weather?
About 17% at 32°F and 28% at 20°F compared with 70°F, from colder battery cells and denser air. The loss is temporary: keep the battery indoors and charge it above freezing.
Range by temperature
Typical 706 Wh, 750 W commuter; 180 lb rider at 16 mph with relaxed pedaling over rolling hills:
| Temperature | Battery capacity | Range | vs. 70°F |
|---|---|---|---|
| 70°F | 100% | 46 mi | — |
| 50°F | 94% | 42 mi | −9% |
| 32°F | 85% | 38 mi | −17% |
| 20°F | 75% | 33 mi | −28% |
| 0°F | 58% | 25 mi | −46% |
Why cold cuts range
Two things happen. The battery delivers less energy: lithium-ion energy cells give about 85% of their capacity at 32°F and about 75% at 20°F (Battery University test data). And cold air is denser, so air drag rises a few percent. Winter clothing that catches more wind adds to it.
Every bike page shows its own range at 70, 50, 32 and 20°F.
Common questions
Can I charge my e-bike battery in the cold?
Not below freezing. Charging a lithium-ion cell below 32°F can plate lithium and permanently damage it. Bring the battery inside and let it warm to room temperature first.
Is the winter range loss permanent?
No. Cold slows the chemistry temporarily; capacity returns once the battery warms up. Repeated deep discharges in the cold do add wear.
How do I get more range in winter?
Keep the battery indoors until you ride, use a neoprene battery cover, keep tires properly inflated, and pedal a bit more. Our simulator lets you set the temperature to see your bike's winter range.
Sources
- Battery University BU-501a: discharge characteristics of Li-ion
- Battery University BU-409: charging lithium-ion
Last checked 2026-10-20.