When charging, the electronic components in the charging head work at full load, causing heat; The shell of the charging head is not easy to dissipate heat or cause heat, and can be charged in a cool environment; Use the original charger when charging, which can prevent overheating and protect the phone battery; Do not play with the mobile phone while charging, which will cause the mobile phone and mobile phone charger to overheat and reduce the life of the mobile phone and charger.