4S 12.8V 18A LiFePO4 iron phosphate BMS with Balance 32650 batteries 20A current limit

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.
 
Notice: 
If the picture is not the same as the parameters,please check according to the parameters. 
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Parameter: 
 
over charge: 3.75V 
 
over discharge: 2.1V 
 
charge voltage: 3.65V * 4 = 14.6V 
 
continuous work current: 18A 
 
over current: 56A 
 
balance voltage: 3.6V 
 
balance current: 50mA 
 
size:  60mm * 40mm * 7.2mm 

Features: wiring diagram

B+        charge/discharge positive

P-       charge/discharge negative

wiring sequnce:  first solder B- then B1 B2 and B3, last B+, 
 before plug the balance cable(socket). please check the voltage, make sure the voltage can match the battery.