Technical Specifications:
Input Voltage: DC5V
Charging Cut-off Voltage: 4.2V±1%
Maximum Charging Current: 1A
Battery Over Discharge Protection Voltage: DC2.5V
Battery Over Current Protection Current: 3A
Constant-Current/Constant-Voltage
Board Size: 26 X 17mm/1.02 "X 0.67"(L*W)
Package includes:
10 x TP4056 Lithium Battery Charger and Protection Module