4S 20A BMS Peak li-ion 14.8V / 16.8V Battery Protection Board

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 battery 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.

Features:

1) high-accuracy voltage detection circuit;

2) terminal of the charger using a high voltage device;

3) Built-in three-stage over-current detection circuit (over-current 1, over-current 2, or load short circuit);

4) MOS transistor can control the battery charge and discharge;

5) low standby current consumption.

4S LI-ION BMS ParameterS:

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

Storage Temperature:-40– +80

Small current:6uA

Life cycle:50000hours

Resistance:45mΩ

Short cut Protection:Protectable ,change for repair Size:35*35*3.0mm