2S 3A 6.4V LiFePO4 BMS/PCM/PCB battery protection circuit board for 2 Packs 18650 Battery Cell
The BMS is used for LiFePO4 battery
NOTE: This product is not suitable for electric drills and electric screwdrivers, for electronic tools application, the big problem is Inrush current. if you are not sure, please do not buy. we have other high current PCM for your choice.
This board no balance function, if you want balance function, you can order together with our 3S balance board.
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: 3.65V
over discharge: 2V
charge voltage: 3.6V * 2 = 7.2V
continuous work current: 3A
over current: 5.2A
balance voltage: not support
balance current: not support
size: 29.5mm * 6mm * 2.7mm
![](https://ae01.alicdn.com/kf/HTB1CyoMMVXXXXXhXFXXq6xXFXXXX/224459592/HTB1CyoMMVXXXXXhXFXXq6xXFXXXX.jpg?size=99107&height=600&width=600&hash=7d094b835fdd033c1266437f990f4cd8)
![](https://ae01.alicdn.com/kf/HTB1ZGf8MVXXXXcKapXXq6xXFXXXe/224459592/HTB1ZGf8MVXXXXcKapXXq6xXFXXXe.jpg?size=165563&height=832&width=718&hash=6d41ee522d605f57ffa19916ddb90cae)
![](https://ae01.alicdn.com/kf/HTB1JoouMVXXXXajXFXXq6xXFXXXb/224459592/HTB1JoouMVXXXXajXFXXq6xXFXXXb.jpg?size=82696&height=800&width=800&hash=6b5c069eb081b7e138314ba096f903cd)
![](https://ae01.alicdn.com/kf/HTB1dyslMVXXXXcBXVXXq6xXFXXXw/224459592/HTB1dyslMVXXXXcBXVXXq6xXFXXXw.jpg?size=62069&height=462&width=600&hash=7a2884f723004dcc84715f61e70072ec)
![](https://ae01.alicdn.com/kf/HTB1LaP8MVXXXXb4apXXq6xXFXXXp/224459592/HTB1LaP8MVXXXXb4apXXq6xXFXXXp.jpg?size=71118&height=459&width=563&hash=382758f655e406550c469e9af57534ce)
![](https://ae01.alicdn.com/kf/HTB1D_7IMVXXXXXuXFXXq6xXFXXX8/224459592/HTB1D_7IMVXXXXXuXFXXq6xXFXXX8.jpg?size=64520&height=462&width=600&hash=84d8093efc1317516a20408410acf484)
Wiring diagram
B+ connected battery positive;
B- connected battery negative;
MB connect the point between battery 1 and battery 2;
B+ charge/discharge positive
P- charge/discharge negative
![](https://ae01.alicdn.com/kf/HTB1xs7JMVXXXXcBXXXXq6xXFXXXh/224459592/HTB1xs7JMVXXXXcBXXXXq6xXFXXXh.jpg?size=38606&height=295&width=615&hash=106b68d006a75235cd246a4cd0c34572)
Applications:
2S 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)