4S-30A LiFePO₄ (LFP) BMS — SLCT Model

Overview
The SLCT 4S-30A BMS is designed for 4-cell LiFePO₄ battery packs with a nominal voltage of 12.8V. It supports a continuous discharge current of up to 30A and provides reliable protection and passive balancing, ideal for small to medium-sized lithium battery applications.

Specifications

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

• Battery Chemistry: LiFePO₄ (LFP)

• Nominal Voltage: 12.8V (3.2V × 4)

• Maximum Continuous Current: 30A

• Peak Current: 40A to 50A (short bursts)

• Balancing Type: Passive balancing

• Balance Current: Approx. 30mA–60mA

• Protection Features:

  • Over-voltage protection

  • Under-voltage protection

  • Over-current protection

  • Short-circuit protection

  • Over-temperature protection

  • Under-temperature protection

• Communication: Not typically included on 30A models

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

Features

• Monitors and protects individual cell voltages

• Passive cell balancing during charging

• Essential safety protections built in

• Simple, compact, and cost-effective design

• Ideal for low to mid-power applications

Applications

• 12.8V LiFePO₄ battery packs

• Small electric vehicles, scooters, and tools

• Solar storage and backup power systems

• LED lighting systems and portable devices

• DIY LiFePO₄ battery projects

Important Notes

• For use only with LiFePO₄ cells (3.2V per cell)

• Ensure proper connection of balance leads and power wires

• Rated for 30A continuous use — do not exceed this limit

• Does not include Bluetooth or data communication features

• Use with proper heat management for optimal safety