The phone charger can always be plugged into the socket, but it is recommended not to use it for a long time, especially after the phone is fully charged. A mobile phone charger is a transformer that can convert low voltage AC power into DC power suitable for mobile phones. If it is constantly plugged into the socket, even if the phone is fully charged, the charger will continuously send current to the phone, which can cause the charger to heat up, waste a large amount of energy, and even damage the charger and phone.
In addition, chargers that have been plugged into sockets for a long time also have safety hazards, such as the socket may overheat due to excessive use for a long time, and even cause circuit short circuits, resulting in safety accidents such as fires. Therefore, it is recommended to unplug the charger in a timely manner after charging to avoid overcharging, protect the charger and phone, and reduce electricity bills to ensure user safety.
