Battery Protection Circuit Board (PCB) for 4 cells in series 12.8V LiFePO4 Battery Packs
![](/htmledit/UploadFiles/201871401855233.jpg)
Features and Benefits
1.Protection Circuit Board for 12.8V 4S LiFePO4 battery pack;
2.PCB applies for 4 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 until other cells reach the same voltage level. Therefore, it helps cells have longer service life.
Specifications
Item |
Contents |
Criteria(Adjustable) |
|
1 |
Model |
HCX-D541 |
4S-40A working current |
2 |
Voltage |
Charging voltage |
14.4V |
3 |
Current |
Maximal continuous charging current |
40A |
Maximal continuous discharging current |
40A |
||
Current consumption |
≤50μA |
||
4 |
Overcharge Protection |
Over charge detection voltage |
3.6V~3.9V(Adjustable) |
Over charge detection delay time |
0.5~2S |
||
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 |
50~200mS |
||
Over discharge release voltage |
2.0V~2.5V(Adjustable) |
||
6 |
Over Current Protection (1st Protection) |
Over current detection current |
Adjustable |
Detection delay time |
700mS |
||
Release condition |
Cut load, automatically recover |
||
7 |
Over Current Protection (2nd Protection) |
Over current detection current |
Adjustable |
Detection delay time |
350mS |
||
Release condition |
Cut load, automatically recover |
||
8 |
Temperature Protection |
Charge overtemperature protection |
50°C |
Discharge overtemperature protection |
70°C |
||
Charge undertemperature protection |
-5°C |
||
Discharge undertemperature protection |
-20°C |
||
9 |
Short Circuit Protection |
Short circuit detection current |
Adjustable |
Detection delay time |
360uS |
||
Detection condition |
Cut load, automatically recover |
||
10 |
Balance |
Balance voltage for single cell |
3.60V±0.025V |
Balance current for single cell |
36mA±5mA |
||
11 |
Resistance |
Inner resistance |
≤20mΩ |
12 |
Temperature |
Operating temperature range |
0 ~ +85°C |
Storage temperature range |
0 ~ +85°C |
||
13 |
Size (L*W*T) |
L120mmm*W60mm*T10mm |