High-accuracy voltage detection circuit; terminal of the charger using high voltage device; low standby current consumption Built-in three-stage over-current detection circuit (over-current 1, over-current 2, or load short circuit);MOS transistor can control the battery charge and discharge; In the use of the battery will be hot, the battery rate is not applicable, this situation can not be used for a long time, the battery will be damaged quickly. The protection board measures 35*35*3.0mm, and the components are S-8254AA protection chip and D403*4 pieces. Over Charge Voltage:4.25-4.35v±0.05v, Over Discharge Voltage: 2.3-3.0v±0.05v

Features:

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)

Applications:

4S Li-ion18650,LiCoO2,LiMn2O4,Li(NiCoMn)O2 rechargeable batteries

4S Lipo rechargeable batteries

BMS solder instruction:

B+ connected battery positive;

B1 the connect point between battery 1 and battery 2

B2 connect the point between battery2 and battery 3

B3 Connect the point between battery 3 and battery 4

B- connect to battery negative end

P- + connection charge / discharge positive;

P- connection charge / discharge negative

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.

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

Storage Temperature:-40~+80

Small current: 6uA

Life cycle:50000hours

Resistance:45mΩ

Short cut Protection:Protectable ,change for repair

Size: 3.6x3.5cm/1.42x1.38inch

Note:

The lithium battery protection board is not included the welding tabs.

Package:

3 * 4S 20A 14.8V Li-ion Lithium 18650 Battery BMS PCM Protection