PCM-S3A8 11.1V8A Balance Function

Protection Circuit Module (PCM) for Li-Ion Battery Pack 3 Series Connection 11.1V 8A with Balance Function


Protection Circuit Module (PCM) for 3S 11.1V Li-ion/Li-Po Battery  Pack
Model:PCM-S3A8 11.1V8A with balance function
Over-charge protection voltage 12.75 ± 0.025V
Over-discharge protection voltage 2.40 ± 0.080V
Balance voltage for single cell 4.20V±0.025V
Over-current protection 20+5A
Maximal continuous Discharging current 8A
Maximal Current consumption 30uA
Short circuit protection Automatic Recovery
Protection  circuitry  resistance ≤20mΩ
Dimension 53.3mm x 17.2mm x 5mm (2.1″x0.7″x0.2″)
Weight 3 grams (0.1Oz)


  • In case of high constant current more than 10A,  it’s strongly recommended that additional protection components to protect the battery itself, for example, polyswitch, NTC, fuse,etc.
  • The safety PCM is specially designed for professionals. Mis-understanding and abuse use may cause battery damaged or over-heated, even exploded.
  • Please don’t use the PCM for lower capacity or low drain Li-Ion pack.  Make sure your Li-Ion battery pack can bear 8A drain current before buying
  • To achieve balance, each cell in battery pack must has equal voltage within tolerance of 0.2V.

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