Why does the charger cover need flame retardant material?

Answer: The charger is actually a transformer, which converts the household 220V alternating current into suitable low-voltage direct current. During the conversion process, about 30% of the electric energy will be consumed and dissipated through the air in the form of heat energy. Therefore, when the mobile phone is charging, the charger will generate a lot of heat energy. In order to protect the user's charging safety, flame-retardant materials are used.