Charging cut-off voltage: 4.2V with a tolerance of 1%
Maximum charging current: 1000mA
Input voltage: 5V
Plug the battery into the B + B- terminals, insert it into the USB female port of a mobile phone charger, a red light indicates charging, and a green light indicates full charge.
Equipped with a MICRO USB female, it can be directly connected to a phone charger to recharge lithium batteries.