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Protection Circuit Module (PCM) with Equilibrium function for 37V Li-Ion Battery Pack at 30A limit

Your Price: $69.95
In Stock

Product ID # 3558
Part Number:

Quantity Discounts

5 to 20$67.85
21 to 50$66.45
51 to 100$65.05
101 or more$62.95

This protection circuit is specially designed for 37V Li-Ion Battery pack 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 Li-Ion cells have longer service life.

Protection Circuit Module Specifications  For 37V Li-ion/Li-Po Battery  Pack
Over-charge protection voltage 4.325±0.025V/cell
Over-discharge protection voltage 2.50±0.05V/cell
Balance voltage for single cell 4.20V±0.025V
Over-current protection 140±10A
Maximal continuous Discharging current 30A
Maximal Current consumption ≤20μA/cell
Short circuit protection Exterior Short Circuit
Protection  circuitry  resistance (B- TO P-) ≤20mΩ
Dimension 145mm x 58mm x 18mm
Weight 39 grams

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

Specification Please Download Specification Here

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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