Outside temperatures can significantly influence the performance of your battery. The range and power output of a battery will be better in mild to warm weather than in sub-zero conditions. If you do park your bike outdoors in the cold, just make sure the battery isn't totally empty.

Charging a battery in sub-zero temperatures may damage the battery – we recommend charging at room temperature. To be safe, it’s best give your bike about an hour to warm up to room temperature before you plug the charger in. To protect the battery from damage, it can’t charge when its internal temperature falls below 0°C. If the battery is too cold, your display will show error 21 when you plug in the charger.

The battery cells themselves won’t deliver power when their internal temperature falls below -10 °C. That means you won’t be able to use motor assistance. Of course, you can still ride your bike without the motor assistance.

In low temperatures, you may notice that your battery drains faster and the Turbo Boost feels slightly less powerful. Riding on a lower power assist level for the first few minutes will give your battery a chance to warm up properly.

We recommend you unplug your bike when it’s fully charged. And if you want to store your bike for a longer period of time, try to leave the battery at around 40-60%. To protect the battery from fully draining, it will go into sleep mode if unused for a while. If your bike isn’t turning on, start by plugging in your bike and charging it for a while. After that, you can wake up your bike with a quick reset.