In fact, the electric car charger is theoretically not universal, which is the same as the principle of the mobile phone charger. It is mainly to see whether the voltage and current are consistent. Generally, the charger of the same brand is more likely to be common, but it is used. At the same time, it is still necessary to check whether the voltage and current match. Many users think that it can be used as long as it can be turned on. In fact, it is easy to charge the battery.