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Protection Circuit Module (PCM) for 2S (6.4V) LiFePO4 Battery Pack at 5A limited with Balance Function (#2684)

Your Price: $4.50
In Stock

Product ID # 2684
Part Number:

This protection circuit is specially designed for 6.4V Li-Ion Battery pack with 5A 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 6.4V LiFePO4 Battery  Pack
Model: PCM-LFP6V5A
Charging Voltage DC: 7.2V, CC/CV (3.6V/Cell)
Balance voltage for single cell 3.60V±0.03V
Balance current for single cell 33±3mA
Over-charge protection voltage for single cell 3.90±0.025V
Over-discharge protection voltage for single cell 2.00±0.05V
Over-current detection protection 14±2A
Maximal continuous Charging & Discharging current 5A
Maximal Current consumption for single cell ≤20uA
Protection  circuitry  resistance (B- TO P-) ≤40mΩ
Dimension 65mmx10mmx2mm
Weight 1 gram

P+ = Charge+ / Discharge +
P- = Charge- / Discharge -
BM = Battery Common


Operating Temperature Range: -40 to 85°C
Storage Temperature Range: -40 to 125°C

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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