8S-20A LiFePO₄ (LFP) BMS — JBD Model

Overview
The JBD 8S-20A BMS is designed for 8-series LiFePO₄ battery packs, with a nominal voltage of 25.6V. It supports continuous discharge current up to 20A and provides essential protection, passive balancing, and smart communication features for safe battery management.

Specifications

• Cell Configuration: 8S (8 cells in series)

• Battery Chemistry: LiFePO₄ (LFP)

• Nominal Voltage: 25.6V (3.2V × 8)

• Maximum Continuous Current: 20A

• Peak Current: Typically up to 30A (short bursts)

• Balancing Type: Passive balancing

• Balance Current: Approximately 30mA to 80mA

• Protection Features:

  • Over-voltage protection

  • Under-voltage protection

  • Over-current protection

  • Short-circuit protection

  • Over-temperature protection

  • Under-temperature protection

• Communication:

  • Bluetooth (optional)

  • UART / RS485 / CAN

• Operating Temperature Range: -20°C to +60°C

Features

• Real-time monitoring of individual cell voltages

• Automatic passive cell balancing during charging

• Comprehensive protections for voltage, current, and temperature

• Bluetooth-enabled monitoring via JBD app (model dependent)

• Compact, durable design for low to mid-power applications

Applications

• 25.6V LiFePO₄ battery packs

• Small electric vehicles such as e-bikes and scooters

• Solar and portable energy storage systems

• DIY 8S battery projects

• Backup power supplies

Important Notes

• Intended for LiFePO₄ (3.2V per cell) batteries only

• Proper wiring of balance leads and main terminals is essential

• Charger and load currents should remain within 20A continuous rating

• Bluetooth and smart features available depending on BMS version

• Cooling recommended during high continuous current operation