Description
Powerful and compact smart BMS designed for 3S–8S Li‑ion and 4S–8S LiFePO4 battery packs. Provides 200A continuous discharge, 2A active cell equalization, Bluetooth APP monitoring and an LCD display for easy setup and reliable battery protection.
Specifications:
- Accessory Type: Battery Accessories
- Battery Included: No
- Certification: None
- Charger Included: No
- Electronic: No
- High-concerned Chemical: None
- PCB Included: No
- Reusability: Reusable
- Supported Cells: Li‑ion 3S–8S, LiFePO4 4S–8S
- Rated Continuous Discharge Current: 200 A
- Maximum Discharge Current: 250 A
- Active Equalization Current: 2 A
- Internal Resistance: 1.3 mΩ (0.0013 Ω)
- Overcurrent Protection (Adjustable): 10–200 A
- Wiring Method: Common port
- Monomer (Cell) Voltage Range: 1.0 V – 5.0 V
- Voltage Acquisition Accuracy: ±5 mV
- Cell Over-charge/Recovery Voltage: Adjustable 1.2 V – 4.35 V
- Cell Over-discharge/Recovery Voltage: Adjustable 1.2 V – 4.35 V
- Protection Delay: 2–120 s (adjustable)
- Balanced Way: Active equalization
- Voltage Range: Low-voltage non-USB — below 75 V DC / below 50 V AC
- Working Temperature: -20 °C – 70 °C (-4 °F – 158 °F)
- Connectivity & Interface: Built-in Bluetooth for APP setup and monitoring; LCD display
Overview & Key Notes: This smart BMS delivers efficient active balancing to improve usable capacity and long-term battery health. Use it for e-bikes, solar battery packs, UPS, EV prototypes and other low-voltage battery systems requiring reliable cell monitoring and protection. Configure equalization voltage, charge/discharge protection parameters and view single-cell voltages via the Bluetooth APP or LCD.
Important Usage Notes:
- After connecting the BMS, use a power supply at least 5 V higher than the battery pack voltage to activate the unit.
- This BMS may be incompatible with certain relays and inverters; it can occasionally display a "Current sensor abnormal" warning or show inaccurate current readings when connected to some relays/inverters. If accurate current reporting with those systems is critical, do not purchase.
- The RS485 converter is only for transferring communication to RS485. It cannot be connected directly to a PC without an additional RS485 module. Wiring: yellow = 485A, white = 485B, black = GND (black wire connection is optional). Protocol will be provided after purchase; software is not included. Users unfamiliar with serial port debugging should exercise caution.
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Safety Notes:
This product involves high-current batteries and electrical connections. Use a compatible charger and power source, follow proper wiring and insulation practices, and avoid short circuits. Installation should be performed by qualified personnel. Do not disassemble the BMS or expose it to moisture. Keep away from children and flammable materials.