Battery Protection Circuit Module (BMS/PCM) for 8S 25.6V LiFePO4 Battery Packs
Features and Benefits
1. Protection Circuit Board for 25.6V 8S LiFePO4 battery pack;
2.PCM applies for 8 cells LiFePO4 battery pack with E-Switch integrated, E-Switch can totally turn off the output;
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
Specifications
Item |
Contents |
Criteria(Adjustable) |
|
1 |
Model |
HCX-D826 / 7790508 |
8S-100A working current |
2 |
Voltage |
Charging voltage |
28.8V |
3 |
Current |
Maximal continuous charging current |
100A |
Maximal continuous discharging current |
100A |
||
Current consumption |
≤50μA |
||
4 |
Overcharge Protection |
Over charge detection voltage |
3.6V~3.9V(Adjustable) |
Over charge detection delay time |
0.5-1.5S |
||
Over charge release voltage |
3.5V~3.8V(Adjustable) |
||
5 |
Over Discharge Protection |
Over discharge detection voltage |
2.0V~2.5V(Adjustable) |
Over discharge detection delay time |
0.5-1.5S |
||
Over discharge release voltage |
2.0V~2.5V(Adjustable) |
||
6 |
Over Current Protection (1st Protection) |
Over current detection current |
Adjustable |
Detection delay time |
700ms±50ms |
||
Release condition |
Cut load, automatically recover |
||
7 |
Over Current Protection (2nd Protection) |
Over current detection current |
Adjustable |
Detection delay time |
350ms±30ms |
||
Release condition |
Cut load, automatically recover |
||
8 |
Temperature Protection |
Charge over temperature protection |
50℃±3℃ |
Discharge over temperature protection |
75℃±3℃ |
||
Charge unde rtemperature protection |
-0℃ |
||
Discharge under temperature protection |
-20℃ |
||
9 |
Short Circuit Protection |
Short circuit detection current |
>=720A (Actual testing is needed) |
Detection delay time |
200-500us |
||
Detection condition |
Cut load, automatically recover |
||
10 |
Balance |
Balance voltage for single cell |
4.18V±0.025V |
Balance current for single cell |
42mA±5mA |
||
11 |
Resistance |
Inner resistance |
≤20mΩ |
12 |
Temperature |
Operating temperature range |
-20 ~ +65℃ |
Storage temperature range |
-20 ~ +85℃ |
||
13 |
Size (L*W*T) |
L150mm*W75mm*T18mm |