Here is the data from our bike's original charger.
V7: 52V/23Ah; 52V/3Ah
G7: 52V/2Ah; 52V/3Ah
WARNING：
Please do not use an incompatible charger to charge your battery. For example, if your battery is 48V, please do not use a 52V charger, as this will damage the battery.
