2 Because the current and voltage of the wireless charger are small, the damage to the battery will be relatively small compared with the traditional charging method. Moreover, the battery charging protection mechanism of modern smart phones has been very mature, which can effectively avoid excessive discharge and damage of the battery. However, when using a wireless charger for a long time to charge, you should still ensure that the charging environment is well ventilated to avoid overheating and battery problems. At the same time, we should also pay attention to unplug the charger in time after full charging to avoid damage to the battery by staying the charger for a long time.