Recovered 4s 32a 12v Lifepo4 BMS

These BMS units were all recovered from 12v lifepo4 batteries. We include the balance lead wires as well.

These are for 4s batteries. There are 3x 16awg wires coming off the B- which would all go to your battery negative and then there are 3x 16awg wires coming off the C- which you would use as your new negative for charge and discharge.

The balance leads go from right to left starting with the black wire which goes to the main negative, yellow wire goes to cell #1 positive, white to cell #2 positive, blue to cell #3 positive, and ending with the red wire which goes to the main positive.

Fully charged cutoff at 3.65v per cell and cully discharged cutoff at 2.5v per cell. 30a continuous charge/discharge. There is a temperature sensor as well. Passive balancing occurs near full charged voltage while charging.