The correct way to charge the BMW i3 tram is to use the original charger for AC low speed charging. When charging, first connect the vehicle and the charger, then press the charging button and select the AC low-speed charging mode. Do not unplug the charger or turn off the charging switch during the charging process. When charging is complete, unplug the charger and turn off the charging switch. Please note that do not use other chargers or non-original chargers to charge, so as not to damage the vehicle or affect the charging effect.