4S 2A 12.8V LiFePO4 BMS/PCM/PCB battery protection circuit board for 4 Packs 18650 Battery Cell
Features:
1) high-accuracy voltage detection circuit;
2) terminal of the charger using 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.
Parameter:
over charge: 3.9V
over discharge: 2.3V
charge voltage: 3.6V * 4 = 14.4V
continuous work current: 2A
over current: 6A
balance voltage: not support
balance current: not support
size: 30mm * 10mm * 2.6mm
![](https://ae01.alicdn.com/kf/HTB13LU1LXXXXXcgXpXXq6xXFXXXX/224459592/HTB13LU1LXXXXXcgXpXXq6xXFXXXX.jpg?size=75550&height=462&width=461&hash=9a24d656beb4dd5894994c6780a4ea1b)
![](https://ae01.alicdn.com/kf/HTB1Q8kBLXXXXXXcapXXq6xXFXXXj/224459592/HTB1Q8kBLXXXXXXcapXXq6xXFXXXj.jpg?size=168227&height=879&width=718&hash=2736a7504450c722c559c50806e805bd)
Wiring diagram
P+ Charge/discharge positive
P- Charge/Discharge negative
![](https://ae01.alicdn.com/kf/HTB1DJ77LXXXXXXQXpXXq6xXFXXXZ/224459592/HTB1DJ77LXXXXXXQXpXXq6xXFXXXZ.jpg?size=53648&height=400&width=600&hash=718ab7b3d702a5125e00c03f49267c2a)
![](https://ae01.alicdn.com/kf/HTB1X1Q6LXXXXXXLXpXXq6xXFXXXE/224459592/HTB1X1Q6LXXXXXXLXpXXq6xXFXXXE.jpg?size=47605&height=227&width=310&hash=5731cf60661c262872511f5e145044ab)
![](https://ae01.alicdn.com/kf/HTB1Nv72LXXXXXbSXpXXq6xXFXXXY/224459592/HTB1Nv72LXXXXXbSXpXXq6xXFXXXY.jpg?size=76559&height=475&width=600&hash=eae4ba5ca345e44cb291d1433c536621)
![](https://ae01.alicdn.com/kf/HTB18k.OLXXXXXb5XVXXq6xXFXXXt/224459592/HTB18k.OLXXXXXb5XVXXq6xXFXXXt.jpg?size=73563&height=600&width=600&hash=01080de2fb09bb95059cca659364b120)
![](https://ae01.alicdn.com/kf/HTB1qJZ4LXXXXXbmXpXXq6xXFXXXW/224459592/HTB1qJZ4LXXXXXbmXpXXq6xXFXXXW.jpg?size=61802&height=500&width=600&hash=fb7dcd6ff04116e52c8478a96f84c17b)
Applications:
4S lifepo4 Rechargeable batteries
Notice:
1. Please pay attention to the use condition of input and output voltage and load current , make the protective plate within the power consumption of no more than specification allows power consumption;
2. Connect the battery will happen cannot discharge status, in this case, connect the charge can be restored to normal working state;
3.If a set of batteries with over-discharge and over-charge cells, the bms cannot be charge and discharge.
![](https://ae01.alicdn.com/kf/HTB1xcaPLXXXXXagXXXXq6xXFXXXJ/224459592/HTB1xcaPLXXXXXagXXXXq6xXFXXXJ.jpg?size=70130&height=375&width=500&hash=2a614d875d4b1cf945cab159d4049fad)