4S 20A Li-ion Lithium 18650 Battery BMS PCM Protection PCB board 14.8V- 16.8V.

Package includes:1 x Protection PCB Board

4 series 18650 battery 16.8V 16V 14.8V

14.8V (Li-ion 18650 or li-ion battery rated voltage)

16.8V (Li-ion battery full charge voltage)

14.4V ( Lipo battery pack rated voltage)

BMS pin-out connection:

B+ connected battery positive;

B1 the connect point between battery 1 and battery 2

B2 connect the point between battery 2 and battery 3

B3 Connect the point between battery 3 and battery 4

B- connect to battery negative 

P- + connection charge / discharge positive;

P- connection charge / discharge negative

4S LI-ION BMS Specifications:

Over Charge Voltage:4.25-4.35v±0.05v

Over Discharge Voltage: 2.3-3.0v±0.05v

Max working current:10A

Max Peak current:20A

Working Temperature:-40~+50

Note:

1) this board is not suit high power electronic tools, if use for screwdrier and drill, please don't buy

2)Above 3A device,means the battry discharge rate is more than 3C.

1C rated battery, 2000mah equals 2ah*1=2A max working current.

3C rated battery means 2ahx3=6A Max working current.

3)Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!!