1. Different ingredients
AC DC power adaptor factory said that the power adapter is an electronic appliance for small portable electronic equipment and power conversion equipment. It consists of shell, transformer, inductor, capacitor, control chip, printed circuit board, etc.
The charger consists of a stable power supply (mainly stable power supply, stable working voltage and sufficient current) plus necessary control circuits such as constant current, voltage limiting, and time limiting.

2. Different current modes
AC DC power adaptor factory indicates that the power adapter indicates the power supply, input and output voltage, current and other indicators from AC input to DC output.
The charger adopts a constant current voltage limiting charging system. The general charging current is about C2, that is, a 2-hour charging rate is used. For example, a 250mAh charge rate for a 500mah battery is about 4 hours.
Three, different characteristics
AC DC power adaptor factory said that the correct power adapter requires safety certification. The power adapter with safety certification can protect personal safety. To prevent electric shock, fire and other hazards.
Charger: It is normal for the battery to have a slight temperature rise in the later stage of charging, but if the battery is obviously hot, it means that the charger cannot detect that the battery is saturated in time, resulting in overcharging, which is harmful to the battery life.