For a new energy vehicle, charging is basically something that every vehicle needs to do, and it is also something that every owner cares about very much. Can slow charging of new energy be replaced by fast charging? The answer is no, because their charging principles are completely different. The slow charging of new energy vehicles is to send the AC power directly to the slow charging interface, and then send the current to the power battery through the on-board charger on the vehicle; In the case of fast charging, the current is directly converted into DC through the charging pile, and then the DC power is directly sent to the battery. The charging path of the two is different, so there is no way to change the slow charging to fast charging. Moreover, the fast charging current is relatively large, and the requirements for the battery and cooling system are relatively high.