Protection Circuit Module for 12.8V LiFePO4 Battery Pack (20A Limit) - For 32600 4S1P battery pack -- 10 Pcs Min (#6218)
This protection circuit is specially designed for 12.8V LiFePO4 Battery pack with 20A 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 LiFePO4 cells have longer service life.
All Lithium Battery packs must connect to a protection circuit module to protect Battery from overcharge, over discharge, short circuit and accidental explosion due to its extra high energy density.
| No. | Item | Criterion | |
| 1 | Voltage | Charging voltage | DC:14.4V CC/CV3.6V/1cell |
| 2 | Current | Current consumption for single cell | ≤50μA |
| Maximal continuous discharging current | 20A | ||
| 3 | Overcharge Protection | Over charge detection voltage | 3.90±0.025V |
| Over charge detection delay time | 0.5S~1.5S | ||
| Over charge release voltage | 3.80±0.025V | ||
| 4 | Over-discharge Protection | Over discharge detection voltage | 2.3±0.0V |
| Over discharge detection delay time | 0.5~1.5S | ||
| Over discharge release voltage | 2.7±0.08V | ||
| 5 | Over Current Protection | Over current detection voltage | 0.1V±0.025V |
| Over current detection current | 100±10A(adjustale) | ||
| Detection delay time | 5ms~15ms | ||
| Release condition | Cut load | ||
| 6 | Short Protection | Detection condition | Exterior short circuit |
| Detection delay time | 200-500us | ||
| Release condition | Cut load | ||
| 7 | Resistance | Protection circuitry | ≤20mΩ |
| 8 | Temperature | Operating temperature range | -40+85 |
| Storage temperature range | -40+125 | ||
| 9 | Size | L61*W61*T5mm | |
| 10 | Usage | 32600 size batteries | 4S1P Configuration |