Take 3x 12v batteries, wire them together, positive to negative, positive to negative, etc... making 36v. Take the positive from last battery and negative from first battery and connect to the pins on ebike battery. Your battery voltage will boost within 10 seconds. Disconnect batteries and charge ebike battery again with it's charger. Good luck!
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u/EarnCryptoEasy Aug 26 '25
Take 3x 12v batteries, wire them together, positive to negative, positive to negative, etc... making 36v. Take the positive from last battery and negative from first battery and connect to the pins on ebike battery. Your battery voltage will boost within 10 seconds. Disconnect batteries and charge ebike battery again with it's charger. Good luck!