2PCS/a lot 2S 8A 8.4V lipo lithium Polymer BMS/PCM/PCB battery protection circuit board for 2 Packs 18650 Li-ion 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 voltage:4.25-4.35v±0.05v
Over dishcarge voltage: 2.5-3.0v±0.05v
Max continuous current:8A
Max peak current:15A
Working temperature:-40---+50
Storage Temperature:-40-- +80
Small current:less than 3uA
Life cycle :more than 50000hours
Resistance:Less than 300mΩ
Short cut protection :Protectable,charge can repair
Size: 41*16*3.5mm
2S BMS Cnnection instruction:
B+ Connect battery positive;
B-Connect battery negative;
MB Connect the point between battery1 & battery 2;
P+ Charge/discharge positive;
P- Charge/discharge negative
![](https://ae01.alicdn.com/kf/HTB1JLi.QXXXXXc8aXXXq6xXFXXXH/222529769/HTB1JLi.QXXXXXc8aXXXq6xXFXXXH.jpg?size=158611&height=750&width=750&hash=ec8d1ccd031035ef85deff4a0f2cb5f7)
2S 3P battery building:
![](https://ae01.alicdn.com/kf/HTB1BJrNQXXXXXXiXXXXq6xXFXXXj/222529769/HTB1BJrNQXXXXXXiXXXXq6xXFXXXj.jpg?size=170107&height=750&width=750&hash=a6cde7ce241c08af1821f30fc9e6d79e)
2s 4p battery pack building:
![](https://ae01.alicdn.com/kf/HTB1BJrNQXXXXXXiXXXXq6xXFXXXj/222529769/HTB1BJrNQXXXXXXiXXXXq6xXFXXXj.jpg?size=170107&height=750&width=750&hash=a6cde7ce241c08af1821f30fc9e6d79e)
Notice:
1) Please note that the input and output voltage, and load current conditions for power protection board does not exceed the electrical parameters of the allowable power consumption;
2) special attention to the load current can not work long hours between maximum continuous operating current and over-current protection current;
3) When connecting the battery ,it may not discharge. In this case, connect the charger can be restored to normal working condition;
4) Although the BMS built-in electrostatic protection circuit, but please do not hand touch when BMS in the working condition, so as to avoid damage from static electricity protection board.
![](https://ae01.alicdn.com/kf/HTB1xcaPLXXXXXagXXXXq6xXFXXXJ/224459592/HTB1xcaPLXXXXXagXXXXq6xXFXXXJ.jpg?size=70130&height=375&width=500&hash=2a614d875d4b1cf945cab159d4049fad)