Battery Protection Circuit Module (BMS/PCM) for 7S 22.4V LiFePO4 Battery Packs
Features and Benefits
1.Protection Circuit Board for 22.4V 7S LiFePO4 battery pack;
2.PCM applies for 7 cells LiFePO4 battery pack;
3.To prevent the battery packs from overcharge,overdischarge,over current, over temperature ,short circuit ;
4.Without cell balance/equilibrium function;
5.Compatible with LiFePO4 cells;
Specifications
|
Item |
Contents |
Criteria (Adjustable) |
|
|
1 |
Model |
BD-0045-7S-V1.0 |
7S-40A working current |
|
2 |
Voltage |
Charging voltage |
25.2V |
|
3 |
Current |
Maximal continuous charging current |
40A |
|
Maximal continuous discharging current |
40A |
||
|
Current consumption |
≤60μA |
||
|
4 |
Overcharge Protection |
Over charge detection voltage |
3.6V~3.9V(Adjustable) |
|
Over charge detection delay time |
≤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 |
≤1.5S |
||
|
Over discharge release voltage |
2.0V~2.5V(Adjustable) |
||
|
6 |
Discharge Over Current Protection (1st Protection) |
Over current detection current |
Adjustable |
|
Detection delay time |
≤1.5S |
||
|
Release condition |
Cut load & charge to recover |
||
|
7 |
Discharge Over Current Protection (2nd Protection) |
Over current detection current R=0.5mR/140 |
Adjustable |
|
Detection delay time |
≤300ms |
||
|
Release condition (delay: 100ms) |
Cut load & charge to recover |
||
|
8 |
Short Circuit Protection |
Short circuit detection current |
≧600A actual testing is needed |
|
Detection delay time |
≤1000us |
||
|
Detection condition |
Cut load/charge to recover |
||
|
9 |
Balance |
Balance voltage for single cell |
/ |
|
Balance current for single cell |
/ |
||
|
10 |
Temperature Protection |
Charge Over Temp Protection |
55℃±4℃ |
|
Discharge Over Temp Protection |
70℃±4℃ |
||
|
Charge Under Temp Protection |
-5℃±4℃ |
||
|
discharge Under Temp Protection |
-25℃±4℃ |
||
|
14 |
Resistance |
Inner resistance P- B- |
≤20mΩ |
|
15 |
Temperature |
Operating temperature range |
0 ~ +85°C |
|
Storage temperature range |
0 ~ +85°C |
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|
16 |
Size (L*W*T) |
L65mm*W58mm*T6mm |
|