FAQ: How long does it take to charge an electric bike battery?
It can take between 2 and 6 hours to charge a battery from completely empty to completely full. The actual time depends on the size and type of the battery. For example, the commonly-used Bosch 400Wh battery takes 3.5 hours to charge to 100%. You will get to 50% charge in 1.5 hours.
For the first 3 charges of a new electric bike battery we recommend charging for a full 10 hours to bring the battery to its full potential capacity.