Protection Circuit Module (PCM) with Balance Function for 7.4V Li-Ion Battery Pack (20A limit)
Parameters
| Protection Circuit Module Specifications For 7.4V Li-ion/Li-Po Battery Pack | |
| Model：PCM-S2A20 7.4V20A with balance function | |
| Over-charge protection voltage | 4.30 ± 0.025V |
| Over-discharge protection voltage | 2.40 ± 0.080V |
| Balance voltage for single cell | 4.20V±0.025V |
| Over-current protection | 33～47A |
| Maximal continuous Discharging current | 20A |
| Maximal Current consumption | 30uA |
| Short circuit protection | Automatic Recovery |
| Protection circuitry resistance | ≤30mΩ |
| Dimension | 120mm(4.72″) x 37mm(1.46″) x 4mm(0.16″) |
| Weight | 23 grams (0.81OZ) |
Waring:
- In case of high constant current more than 10A, it’s strongly recommended that additional protection components to protect the battery itself, for example, polyswitch, NTC, fuse,etc.
- The safety PCM is specially designed for professionals. Mis-understanding and abuse use may cause battery damaged or over-heated, even exploded.
- Please don’t use the PCM for lower capacity or low drain LiFePO4 pack. Make sure your LiFePO4 Battery pack can handle 20A drain current before buying
- To achieve balance, each cell in battery pack must has equal voltage within tolerance of 0.2V.
