Features and Parameters:
Input Voltage: 5V
Charging cut-off voltage: 4.2V ± 1%
Maximum charge current: 1000mA
Battery over-discharge protection voltage: 2.5V
Battery overcurrent protection current: 3A
Board size: 2.7 * 1.7CM

Note:
1. When the first time you access the battery, there may be no voltage output between OUT- and OUT +, at this time, get access to the 5V voltage, it will be activated.
2. When the battery was get out from B + and B- , it still need to be charged then can be activated .
3. If you want to use Phone charger to charge, the current input should be up to 1A and more, otherwise it can not be in normal charged.
Connect the battery to the B + and B-, insert the phone charger into the USB female, red light means being charged, the green light means full charged.