4S-6A LiFePO₄ (LFP) BMS — JLGW Model

Overview
The JLGW 4S-6A BMS is designed for 4-cell LiFePO₄ battery packs with a nominal voltage of 12.8V. It supports continuous discharge currents up to 6A and provides essential protections along with passive balancing, suitable for low-power applications such as small electronics, LED lighting, and portable power systems.

Specifications

• Cell Configuration: 4S (4 cells in series)

• Battery Chemistry: LiFePO₄ (LFP)

• Nominal Voltage: 12.8V (3.2V × 4)

• Maximum Continuous Current: 6A

• Peak Current: 8A (short bursts)

• Balancing Type: Passive balancing

• Balance Current: Approx. 15mA–30mA

• Protection Features:

  • Over-voltage protection

  • Under-voltage protection

  • Over-current protection

  • Short-circuit protection

  • Over-temperature protection

• Communication: Typically no smart communication

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

Features

• Monitors individual cell voltages and balances during charging

• Basic but reliable safety protections

• Compact and lightweight design

• Suitable for low-current battery packs

• Easy installation and operation

Applications

• 12.8V LiFePO₄ battery packs

• LED lighting and small electronics

• Portable power banks and backup systems

• DIY battery and solar projects

Important Notes

• Compatible only with LiFePO₄ cells (3.2V per cell)

• Proper wiring of balance and power leads is essential

• Continuous current should not exceed 6A

• No Bluetooth or advanced communication features

• Ensure proper ventilation and cooling during use