How do I charge the extra battery if the bike has not been switched on for a long time

One way to keep BikeTrax working would be to winterise the e-bike with a low battery level and charge it every 3 weeks. A full charge of a main battery usually takes up to 5 hours. The additional battery is fully charged again in just over an hour. With this rhythm you can make ends meet for about 3-4 months with active anti-theft protection.

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