Battery Protection Circuit Module (BMS/PCM) for 12S 38.4V LiFePO4 Battery Packs
Features and Benefits
1.Protection Circuit Board for 38.4V 12S LiFePO4 battery pack;
2.PCM applies for 12 cells LiFePO4 battery pack.
3.To prevent the battery packs from overcharge,overdischarge,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.
Specifications
|
Item |
Contents |
Criteria (Adjustable) |
|
|
1 |
Model |
HCX-D727 |
12S-20A working current |
|
2 |
Voltage |
Charging voltage |
43.2V |
|
3 |
Current |
Maximal continuous charging current |
15A/5A |
|
Maximal continuous discharging current |
15A/20A |
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|
Current consumption |
≤50μA |
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|
4 |
Overcharge Protection |
Over charge detection voltage |
3.6V~3.9V(Adjustable) |
|
Over charge detection delay time |
0.5S-1.5S |
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|
Over charge release voltage |
3.5V~3.8V(Adjustable) |
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5 |
Over Discharge Protection |
Over discharge detection voltage |
2.0V~2.5V(Adjustable) |
|
Over discharge detection delay time |
0.5S-1.5S |
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|
Over discharge release voltage |
2.0V~2.5V(Adjustable) |
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|
6 |
Over Current Protection (1st Protection) |
Over current detection current / Voltage |
Adjustable / 0.10±0.01V |
|
Detection delay time |
235mS - 705mS |
||
|
Release condition |
Cut load / charge to recover |
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|
7 |
Over Current Protection (2nd Protection) |
Over current detection current / Voltage |
Adjustable / 0.20±0.02V |
|
Detection delay time |
23.5mS – 70.5mS |
||
|
Release condition |
Cut load / charge to recover |
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|
8 |
Short Circuit Protection |
Short circuit detection current |
Adjustable |
|
Detection delay time |
<280uS (fixed) |
||
|
Detection condition |
Cut load / charge to recover |
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|
9 |
Balance |
Balance voltage for single cell |
3.6V±0.025V |
|
Balance current for single cell |
108mA±15mA |
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|
10 |
Temperature Protection |
Temperature Switch |
90°C |
|
NTC (10KNTC B=3435) |
YES |
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|
11 |
Resistance |
Inner resistance |
≤20mΩ |
|
12 |
Temperature |
Operating temperature range |
0 ~ +85°C |
|
Storage temperature range |
0 ~ +85°C |
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|
13 |
Size (L*W*T) |
L60mm*W32mm*T11mm |
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