USB 3.5mm 3.7V 4.2V lithium battery charger drone aircraft


It can be plugged into the mobile phone charger or the USB socket on the computer to charge the lithium battery, such as flashlights, toy cars, airplanes, etc.
The maximum current is 300mA, and the cable length is 55CM.
The USB terminal has a charging indicator. When charging, the indicator light does not light. When the battery is fully charged, the indicator light is on.