Electric car charger can not be mixed. The size of the electric car charger should be unified with the battery size to use, respectively, 36V, 48V14A, 48V20A, 48V24A, 60V14A, 64V20A, 60V20A and so on. The charger is best used with the original electric vehicle, and the mismatched battery damage is relatively large, and it is easy to cause safety risks.