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PCM with Equilibrium &Temperature protection function for 22.2V-44.4V Li-Ion / 19.2V-38.4V LFP Battery Pack @ 30A limit (#6236)

Your Price: $65.99
Call for Order & Lead Time: 3-4 weeks after order

Product ID # 6236
Part Number:

5 Pcs Minimum Order


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This protection circuit is specially designed for 22.2V-44.4V Li-Ion Battery packs or 19.2V-38.4V LiFePO4 Battery Packs with 30A discharging rate. Different than normal PCB, it provides equilibrium function after battery pack is fully charged. PCM will detect each cell's voltage and trim higher voltage down until other cells reach the same voltage level. Therefore, it helps cells have longer service life.

Protection Circuit Module Specifications
Model: PCM-SM24
Over-charge protection voltage Li-ion: 4.25±0.025V
LiFePO4: 3.90±0.025V
Over-discharge protection voltage Li-ion: 2.50±0.07V
LiFePO4: 2.0±0.05V
Balance voltage for single cell Li-ion: 4.20V±0.025V
LiFePO4: 3.6V±0.03V
Maximal continuous Charging current 15A
Maximal continuous Discharging current 30A
Maximal Current consumption ≤20uA/cell
Protection  circuitry  resistance (B- TO P-) ≤30mΩ
Dimension 80mm x 60mm x 20mm (3.15"x2.4"x0.8")
Weight 110g (4 oz)

P+ = Charge+ / Discharge +
P- = Charge- / Discharge -

Specification available upon request

For other PCM/PCB, please check our PCM/PCB/BMS/CMB/UPS category


  • If you want to use this protection circuit board for a battery that is less than the rated drain, you must add additional protection device to protect the battery itself. Such as: proper rated polyswitch. 
  • To achieve balance, each cell in battery pack must has equal voltage within tolerance. When charger LED turn Green, allow 30 minutes for pack to balance before use.
  • You must be professional in Lithium battery pack to buy the protection circuit board. Misusing may cause battery damage or explode. We are not responsible for any damage caused by user.

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