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BMS D682V1 for 38.4V 12S LiFePO4 Battery Packs (40A Charge, 130A Discharge)

1. Protection Circuit Board for 38.4V 12S LiFePO4 battery pack;
2. PCM applies for 12 cells LiFePO4 battery pack with E-Switch integrated, E-Switch can totally turn off the output;
3. To prevent the battery packs from over charge, over discharge, over current, over temperature ,short circuit ;
4. With cell balance/equilibrium function;
5. Compatible with LiFePO4 cells; 
6. How balancing function works? 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.
7. PCM comes with all the voltage detection wires and connectors.
We keep materials in stock only, we need around 3-7 days for samples productions. 

Sale Price:$
Quantity Amount
51-100 $80.39
101-200 $75.89
200+ $69.89
Weight:485g Model:
Total cost:

Quantity: (stock:

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Content Criterion
Model HCX-D682V1LF12S130A-03/BQ77905 12S-130A working current
Voltage Charging voltage 43.2V
Current Maximal continuous charging current 40A
Maximal continuous discharging current 130A
Current consumption ≤50uA
Overcharge Protection Over charge detection voltage 3.9V±0.02V
Over charge detection delay time 0.5S-1.5S
Over charge release voltage 3.7V±0.05V
Over Discharge Protection Over discharge detection voltage 2.0V±0.05V
Over discharge detection delay time 0.5S-1.5S
Over discharge release voltage 2.4V±0.1V
Over Current Protection
(1st Protection)
Over current detection current 200A±20A
Detection delay time 700mS
Release condition Cut load, automatically recover
Over Current Protection
(2nd Protection)
Over current detection current 400A±40A
Detection delay time 90mS
Release condition Cut load, automatically recover
Temperature Protection
(Multi NTC’s are available)
Charge over temperature protection 50°C
Discharge over temperature protection 70°C
Charge under temperature protection -5°C
Discharge under temperature protection -20°C
Short Circuit Protection Short circuit detection current >=800A
Detection delay time 360uS
Detection condition Cut load, automatically recover
Balance Balance voltage for single cell 3.60V±0.015V
Balance current for single cell 36mA±5mA
Resistance Inner resistance ≤20mΩ
Temperature Operating temperature range 0~+85℃
Storage temperature range 0~+85℃
Size(L*W*H) L220mm*W100mm*H12mm