This protection circuit is specially designed for 88.8V Li-Ion Battery pack with 100A discharging rate. Different than normal PCB, it provides equilibrium function 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 Li-Ion cells have longer service life.
| Protection Circuit Board Specifications For 88.8V Li-ion/Li-po Battery Pack |
| Model: PCM-LI88.8V100A-B |
| No. |
Test item |
Criterion |
| 1 |
Voltage |
Charging voltage |
DC: 100.8V CC/CV (4.2V/1cell) |
| Balance voltage for single cell |
4.20±0.05V |
| 2 |
Current |
Balance current for single cell |
323±20mA |
| Current consumption for single cell |
≤20μA |
| Maximal continuous Charging current |
100A |
| Maximal continuous discharging current |
100A |
| 3 |
Over charge Protection
(single cell) |
Over charge detection voltage |
4.25±0.05V |
| Over charge detection delay time |
0.5S-2.0S |
| Over charge release voltage |
4.05±0.1V |
| 4 |
Over discharge protection
(single cell) |
Over discharge detection voltage |
2.50±0.1V |
| Over discharge detection delay time |
10-200mS |
| Over discharge release voltage |
2.5±0.1V |
| 5 |
Over current protection |
Over current detection voltage |
N/A |
| Over current detection current |
300±20A |
| Detection delay time |
5ms-60ms |
| Release condition |
Cut load, Auto Recovery |
| 6 |
Short protection |
Detection condition |
Exterior short circuit |
| Detection delay time |
200-800us |
| Release condition |
Cut load, Auto Recovery |
| 7 |
Resistance |
Protection circuitry (B- TO P-) |
≤30mΩ |
| 8 |
Temperature |
Operating Temperature Range |
-40 to +70 |
| Storage Temperature Range |
-40 to +125 |
| 9 |
Thermostat |
MOSFET Temperature |
90 |
| 10 |
Dimenstion |
L x T x H |
243 x 150 x 50mm |
| 11 |
Specification in pdf file |
 Download the specification |
|
For other PCM/PCB, please check our PCM/PCB/BMS/CMB/UPS category
Warning
- If you want to use this protection circuit board for a battery that is less than the rated drain, you must add additional protection device to protect the battery itself. Such as: proper rated polyswitch.
- To achieve balance, each cell in battery pack must has equal voltage within tolerance. When charger LED turn Green, allow 30 minutes for pack to balance before use.
- You must be professional in Lithium battery pack to buy the protection circuit board. Misusing may cause battery damage or explode. We are not responsible for any damage caused by user.
Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can't offer you a refund or exchange. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
