It is best to unplug the charger promptly after the phone is fully charged. Because the charger is connected to the phone for a long time, although the phone will automatically stop charging when fully charged, the charger itself still continues to supply power, which may cause the charger to overheat and even generate sparks, leading to safety issues such as short circuits or fires. Moreover, excessive charging may also have a certain impact on the lifespan of mobile phone batteries.
In daily use, in order to extend the battery life of the phone, it is recommended to start charging when the phone's battery level is below 20%. After fully charging, unplug the charger in a timely manner, and do not let the phone be connected to the charger for a long time. In addition, you can also choose green services for battery consumption by plugging in the power, such as turning on power saving mode, turning off Bluetooth, and positioning, and controlling the frequency of use to reduce battery consumption.
