20S 60A version D LiFePO4 BMS/PCM/PCB battery protection board for 20 Packs 18650 Battery Cell with balance function with temperature switch.
Note: this BMS with balance function. your battery need match, battery should have good consistency, if not sure, please use new brand battery.
this is version D, charge and discharge use difference port.
if you want charge and discharge use the same port, please select version S.
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.
40A version: continuous work current: 40A, over current: 80A
60A version: continuous work current: 60A, over current: 120A
60A Parameter:
over charge: 3.75V
over discharge: 2.1V
charge voltage: 3.65V * 20 = 73V
continuous work current: 60A
over current: 120A
balance voltage: 3.6V
balance current: 50mA
size: 95mm * 87mm * 10mm
we will send with balance cable(balane wire)
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.
5) If the picture is not the same as the parameters,please check according to the parameters table.
6) Please note that it is without balance function.
wiring diagram
charge: B+ and C-
discharge: B+ and P-
B+: the positive of battery pack
B-: the negative of battery pack
Wiring sequence: First solder line B- to battery negative, connect balance cable to battery(B1 B2 ... B20), insert the cable(socket), After check, then connect P-/ C- line, then look at the amount of the total voltage of the battery, if the voltage between P- and B+ equal the total voltage, it’s should be work properly.
step 1: connect battery, check carefully.
![](https://ae01.alicdn.com/kf/HTB1gvl7PFXXXXbrXXXXq6xXFXXX5/224459592/HTB1gvl7PFXXXXbrXXXXq6xXFXXX5.jpg?size=272387&height=477&width=635&hash=fad49f5ce0c53ac82ebe59d33e3ee86b)
step 2: plug the balance cable, first low bit, last high bit.
![](https://ae01.alicdn.com/kf/HTB13OlWPFXXXXcaXpXXq6xXFXXXk/224459592/HTB13OlWPFXXXXcaXpXXq6xXFXXXk.jpg?size=201716&height=479&width=641&hash=3f577e0aab7cd802ffc49be9de443bb4)
SMT Workshop:
![](https://ae01.alicdn.com/kf/HTB1bbGALXXXXXbXXFXXq6xXFXXXK/224459592/HTB1bbGALXXXXXbXXFXXq6xXFXXXK.jpg?size=47120&height=375&width=500&hash=b9742010ed447246f39f0377c154a45e)