The 66W charger can not charge the low-power mobile phone, because the power and voltage of the 66w charger are higher than that of the mobile phone, and the power and voltage of the two are not matched, if the 66w charger is used to charge the mobile phone with low power and voltage, the charger output large current and large voltage will charge the mobile phone battery, and the serious will burn the mobile phone. When charging the mobile phone, select the matching charger.