1, during the charging period, the electronic components inside the charger are working at full load, the shell is not good for heat, heat is normal, as long as it is not too hot, there is no problem, after the end of charging, the temperature of the charger will naturally fall until it is close to the room temperature.
2, mobile phone charging, the charger heat is normal, which is related to the current intensity of the charger output and the ambient temperature, the following share the charger overheating solution:
(1) Do not put the mobile phone on the clothes or quilt to charge, which is not conducive to heat dissipation.
(2) The phone charger is overheated, and it is best to charge it in a cool environment in summer, such as an air-conditioned room. So the phone charger doesn't overheat.
The phone charger is not set to cool down, because the current intensity is small. The electric car charger has a cooling fan to keep the temperature down