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PCM with Equilibrium function for 12.8V LFP Battery Pack @ 30A limit (#6399)

Your Price: $41.50
In Stock

Product ID # 6399
Part Number:

This protection circuit is specially designed for 12.8V LiFePO4 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 LiFePO4 cells have longer service life.

Protection Circuit Module Specifications  For 12.8V LiFePO4 Battery  Pack
Over-charge protection voltage 3.90 V±25 mV
Over-discharge protection voltage 2.3±0.08V
Over-current protection 100-140A
Maximal continuous Discharging current 30A
Maximal Current consumption ≤20uA
Short circuit protection Automatic Recovery
Protection  circuitry  resistance (B- TO P-) ≤30mΩ
Dimension 110mm(4.3") x 95mm(3.7") x 6mm(0.2")
Weight 49 grams

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

Specification Download Specification

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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Product Reviews

(2 Ratings, 2 Reviews) Average Rating:
Works great! Arrived quickly!
Darin Hess (Bountiful, UT) 4/5/2021 3:47 PM
I purchased one of these PCM-LPS4A30 on 3/25/21 and it arrived in less than 5 business days. I installed it to control four 38120S 10Ah LiFePO4 cells. It works great! So, I bought another one to make another battery pack!
Telephone representative was very helpful and prompt, delivery was very fast
edward_kirton (CONCORD, CA) 6/1/2012 2:59 PM
Telephone representative was very helpful and prompt, delivery was very fast.
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