3s~4s 7A PCM BMS for 14.4V 14.8V Li-ion/Lithium/ Li-Polymer 12V 12.8V LiFePO4 Battery Pack with Smbus Protocol Size L70*W34*T3.5mm (PCM-L04S07-E18)
Product Description
Technical parameter
Product name:Protection Circuit Module
Model No:PCM-L04S07-E18
For 3~4S Lithium-ion/Lithium Polymer/LiFePO4 Battery Packs
Product Feature:
1. Suitable for 3-4 section Lithium-ion/Lithium Polymer/LiFePO4 Battery Packs;
2. Maximum continuous working current 7A, same interface for charging/discharging;
3. Overcharge, overdischarge, short circuit, overcurrent, temperature protection, etc.;
4. Ti BQ4050/BQ40Z50 is adopted,Can read voltage, capacity, current, temperature, cycle times and other parameters;
5. Through the PCM-LCD001-415 display screen, the required information can be read;
6. Support SMBus protocols;
| Items | Specifications | ||
| Lithium-ion/Lithium Polymer | LiFePO4 | ||
| Communication Interface | SMBus | ||
| Capacity | Designing battery capacity(4S2P) | 5.2Ah | |
| Max capacity(Battery pack) | 32000mAh | ||
| Min capacity(Battery pack) | 1000mAh | ||
| External capacity Indication | LCD,LED,SOC | ||
| Gas gauge algorithm | CEDV | ||
| Voltage | Charging voltage(4S) | CC/CV:16.8V(4.2V/Cell) | CC/CV:14.4V(3.6V/Cell) |
| Cell-balance window | 50mV±10% | ||
| Cell-balance release voltage | 20mV±10% | ||
| Cell-balance detection delay time | 0.5~2s | ||
| Current | Balance current for single cell | 66mA±5mA | 56mA±5mA |
| Normal operating-mode current (Gas Gauge IC) | 800 uA | ||
| SLEEP operating-mode current (Gas Gauge IC) | 200 uA | ||
| FULL SLEEP operating-mode current (Gas Gauge IC) | 1 uA | ||
| Maximal continuous charging current | 7A | ||
| Maximal continuous discharging current | 7A | ||
| Over charge Protection | Over charge detection voltage | 4.25±0.025V | 3.80±0.05V |
| Over charge detection delay time | 1~2S | 1~2S | |
| Over charge release voltage | 4.05±0.05V | 3.55±0.05V | |
| Over discharge protection | Over discharge detection voltage | 2.5±0.07V | 2.00±0.05V |
| Over discharge detection delay time | 1~2S | 1~2S | |
| Over discharge release voltage | 3.0±0.1V | 2.7±0.05V | |
| Over current protection | Over current detection voltage | 0.2±0.015V | |
| Over current detection current | 15±5A(can adjust) | ||
| Detection delay time | 5~60ms | ||
| Release condition | Cut load | ||
| Short protection | Detection condition | Exterior short circuit | |
| Detection delay time | 200-800us | ||
| Release condition | Cut load | ||
| Resistance | Protection circuitry (MOSFET)B- to P- | ≤20mΩ | |
| Temperature protection | Charge temperature protection | 60ºC±5ºC | |
| Charge release temperature | 50ºC±5ºC | ||
| Discharge temperature protection | 65ºC±5ºC | ||
| Discharge release temperature | 55ºC±5ºC | ||
| Operating Temperature Range | -40~+85ºC | ||
| Storage Temperature Range | -40~+125ºC | ||
| Dimension | L70*W34*T3.5mm | ||