Lithium battery charging method:
1. Remove the USB port 5V charging cable, insert the charging head into the charging port on the back of the lid.
2. Insert the other end of the USB port into the 5V charger of the phone or the USB interface of the computer, and then connect the power supply to recharge. At this moment, the indicator light (red) indicates that it is being charged.
Charging time 4-8 hours later, the light goes out, said it is fully charged, the charging power can be unplugged with the charging line. (Note: When charging, please use 5V charger to charge (general mobile phone charger is 5V). Do not use more than 5V charger to charge, please open the switch when charging, charging does not affect the normal use).