Micro usb lithium battery charging board with overcharge, overdischarge and overcurrent protection
On-board micro USB and soldering joints 5V input`port and charging status indicator(red indicator is charging,green indicator is full charged)
Input Voltage: DC5V,Charging Cut-off Voltage: 4.2V Maximum Charging Current: 1A
Current: 3A, Board Size: 26 X 17mm/1.02 X 0.67inch(L*W)