As an electronic product, China ac to dc adapter will cause various degrees of corrosion or oxidation to its internal electronic components if it accidentally enters water or is exposed to a humid environment when it is not used for a long time.
1. China ac to dc adapter is actually a fragile electronic component
Internal components can not withstand beating. In particular, prevent falling from a height during use, and do not drop, knock, or shock the charger. Rough handling can damage the internal circuit boards, causing malfunctions.

2. Do not place China ac to dc adapter in a place where the temperature is too high
High temperatures can shorten the life of electronics, damage chargers, and deform or melt some plastic parts. Also do not store in a place that is too cold. When China ac to dc adapter works in a too cold environment, when the internal temperature rises, moisture will form in the charger and destroy the circuit board.
3. Regularly clean the charging interface of China ac to dc adapter.
When cleaning, use a damp cloth, or preferably a good quality antistatic cloth. Remember, do not use a drying cloth.
4. Do not use strong chemicals when cleaning.
If the surface of China ac to dc adapter is stained, wipe it with a small amount of absolute alcohol with cotton.