When charing an electronic product or using an external charger:
(1) Avoid prolonged charging and unplug the charger/ power transformer immediately after use.
(2) If the charger/ power transformer is found to be too hot, unplug it immediately and switch off the power.
(3) When charging an external charger, do not use it at the same time to charge other devices to avoid overloading it.
(4) Protect the external charger from being hit or damaged since loose or displaced parts may cause a short circuit or fire.