Protection Circuit Module (PCM) with Balance Function for LiFePO4 Battery Pack 4 Series Connection 12.8V  at 100A limited


Protection Circuit Module Specifications  For 12.8V LiFePO4 Battery  Pack
Model:PCM-LFP-S4A100 12.8V 100A
Over-charge protection voltage 15.60 V±25 mV
Over-discharge protection voltage 2.0±0.05V
Over-current protection 175±20A *peak current less than 5 seconds, optional
Maximal continuous Discharging current 100A * constant working current
Maximal Current consumption ≤20uA
Short circuit protection Automatic Recovery
Protection  circuitry  resistance (B- TO P-) ≤20mΩ
Dimension 220mm (8.67″) x 110mm (4.3″) x 26mm (1″)
Weight 545 grams (19.22 oz)
B+/P- B+/P- = Charge+/-, Discharge +/-


  • The PCM is specially designed for LiFePo4 4S 12.8V with 100A discharging rate. It’s different from others, whose balance function is set to ensure battery  fully charged and safety.
  • PCM will detect each cell’s voltage and trim higher voltage down until other cells reach the same voltage level. Therefore, it helps batteries have longer service life.
  • In case of high constant current more than 10A,  it’s strongly recommended that additional protection components to ensure safety, for example, polyswitch, NTC, fuse,etc.
  • The safety PCM is specially designed for professionals. Mis-understanding and abuse use may cause battery damaged or overheated, even exploded.

Share with others.Tell something to us.

Welcome to HUNG SANG !