Symptoms
- Range estimate drops noticeably when temperatures fall
- Heater use accelerates the drop further
- Range recovers somewhat once temperatures warm up
- Battery seems to charge and perform normally otherwise
Likely causes
- CommonReduced battery efficiency in cold temperaturesLithium-ion batteries are less efficient at delivering and accepting energy when cold, which is a known characteristic, not a defect.
- CommonCabin heater drawing significant powerUnlike a gas car's waste heat, an EV must use battery energy to heat the cabin, which can noticeably cut range.
- PossibleCold tires increasing rolling resistanceTire pressure typically drops in cold weather, and cold rubber also has more resistance, both reducing efficiency.
What to do
- Precondition the cabin and battery while still plugged in, before unplugging, so you use grid power instead of battery range for warm-up.
- Use seat and steering wheel heaters instead of the cabin air heater when possible, since they use much less energy.
- Check tire pressure regularly in cold weather, since low pressure increases energy use and wear.
- Plan for 20–30% less real-world range in freezing temperatures compared to mild weather, especially on short trips.
- Keep the battery charge from getting too low in cold weather, since very low charge combined with cold can further limit performance.
- Understand this is expected EV behavior industry-wide and not specific to a fault with your car.
Tools and parts
- Tire pressure gauge
When to call a pro
If cold-weather range loss seems far beyond what's typical for your model, compare notes with your dealer or an EV owners' community for your specific car.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.