PCM-S2A7 6.4V7A Balance Function

Protection Circuit Module (PCM) with Balance Function for 2 cells (6.4V) LiFePO4 Battery Pack at 7A limite


Protection Circuit Module for 6.4V LiFePO4 Battery  Pack   * Li-Ion 7.2V/7.4V optional
Model: PCM-S2A7 6.4V7A with balance function
Over-charge protection voltage of single cell 3.90±0.025V
Over-discharge protection voltage of single cell 2.00±0.05V
Over-current detection protection 17±3A   *peak current
Maximal continuous Discharging current 7A  constant current
Maximal Current consumption 25uA
Protection  circuitry  resistance (B- TO P-) ≤30mΩ
Dimension 40mm(1.6″) x 18mm(0.7″) x 3.0mm(0.1″)
Weight 0.3Oz (8.5 grams)
P+/P-/BM P+ = Charge+ / Discharge +
P- = Charge- / Discharge –
BM = Battery Common


The PCM is specially designed for 6.4V* Li-Ion Battery pack with 7A discharging rate. It’s different from other PCB, whose balance function is built-in after battery pack  fully be charged. PCM detects each  voltage and trim higher voltage down until other cells reach the same voltage level. Therefore, it helps Li-Ion cells have longer service life and stable performance.

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