BMS 4S 20A li ion Lifepo4 battery pcm for 12.8v 14.8v battey pack
About the battery BMS
Function: Detect and protect the battery from over-charge ,over-dicharge, over-current short-circuit ,temperature detecting protection and auotmatically voltage balance function .
About your products,just tell us the relative voltage/ cells/ current A or equipment etc,we will help to recomment the most suitable products for you. or we design for you!
Product description
| PCM Specifications For 12.8V (4S) Lifepo4 Battery Packs | ||||
| LWS-4S20A-068(4S) | ||||
| No. | Test item | Criterion | ||
| 1 | Voltage | Charging voltage | DC:14.4V CC/CV | |
| Balance voltage for single cell | 3.6±0.025V | |||
| 2 | Current | Balance current for single cell | 36±5mA | |
| Current consumption | ≤20μA | |||
| Max continuous charging current | 20A | |||
| Max continuous Discharging current | 20A | |||
| 3 | Over charge Protection | Over charge detection voltage for single cell | 3.9±0.025V | |
| Over charge detection delay time | 0.5S-2S | |||
| Over charge release voltage for single cell | 3.8±0.05V | |||
| 4 | Over discharge protection | Over discharge detection voltage for single cell | 2.0±0.062V | |
| Over discharge detection delay time | 10mS-200mS | |||
| Over discharge release voltage for single cell | 2.50±0.1V | |||
| 5 | Over current protection | Over current detection voltage | 0.10±0.025V | |
| Over current detection current | 100±20A | |||
| Detection delay time | 5ms-20ms | |||
| Release condition | cut load and recharge | |||
| 6 | Short protection | Detection condition | Exterior short circuit | |
| Detection delay time | 200-500us | |||
| Release condition | cut load and recharge | |||
| 7 | Resistance | Protection circuitry(MOSFET) | ≤20mΩ | |
| 8 | Temperature | Operating Temperature Range | -40~+65ºC | |
| Storage Temperature Range | -40~+125ºC | |||



