6s 7s 8s 24V 50a Smart BMS PCB PCBA for 28.8V 29.6V Lithium ion Batteries 25.6V Energy Storage LiFePO4 Battery Packs with SMBus
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- Supplier: Shenzhen Keying Hengye Technology Co. Ltd.
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Product Overview
Description
Technical parameter
Product name:Protection Circuit Module
Model No:PCM-L08S50-J89
For 8S Lithium-ion/Lithium Polymer/LiFePO4 Battery Packs
Product feature
1. Suitable for 8 section Lithium-ion/Lithium Polymer/LiFePO4 Battery Packs;
2. Maximum continuous operating current 50a, charging/discharging on the same port;
3. Protection parameters can be set;
4. The measurement IC adopts BQ78350+BQ76930 series, which can read parameters such as voltage, capacity, current, temperature, and cycle times;;
5. Equipped with balance and temperature protection;
| Items | Specifications | |||
| Lithium-ion/Lithium Polymer | LiFePO4 | |||
| Communication Interface | SMBus | |||
| Capacity | Designing battery capacity | 50Ah | ||
| Max capacity(Battery pack) | 320Ah | |||
| Min capacity(Battery pack) | 100mAh | |||
| External capacity Indication | LCD,LED,SOC | |||
| Gas gauge algorithm | CEDV Algorithm | |||
| Voltage | Charging voltage(8S) | 33.6(4.2V/Cell) | 28.8V(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 | 34 ± 3mA | 29 ± 3mA | |
| Normal operating-mode current (Gas Gauge IC) | 800uA | |||
| SLEEP operating-mode current (Gas Gauge IC) | 200uA | |||
| FULL SLEEP operating-mode current (Gas Gauge IC) | 1uA | |||
| Maximal continuous charging current | 50a(Max) | |||
| Maximal continuous discharging current | 50a(Max) | |||
| 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 | 130±20a(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 | 60℃±5℃ | ||
| Charge release temperature | 50℃±5℃ | |||
| Discharge temperature protection | 65℃±5℃ | |||
| Discharge release temperature | 55℃±5℃ | |||
| Operating Temperature Range | -40~+85℃ | |||
| Storage Temperature Range | -40~+125℃ | |||
| Dimension | L150*W63*T8mm | |||
| B+:Battery+ |  | |||
| B-:Battery- | ||||
| SMBD:SMBus data line | ||||
| SMBC:SMBus clock line | ||||
| RT1:MOSFET temperature detector | ||||
| RT2:Battery temperature detector | ||||
| SW1:Fuse enable switch | ||||
| P+:Charge+/discharge+ | ||||
| P-:Charge-/discharge- | ||||
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