STJF 7S BMS Protection Board 25.9V 29.4V 15A Lithium Battery Management Module with Cell Balance Overcharge Overdischarge Overcurrent Short Circuit Protection For 7 Series 18650 Li-ion Packs

Product Description:

STJF 7S lithium battery management module for assembling 7-series 18650 Li-ion battery packs. It provides battery monitoring and management at a 25.9V nominal voltage with a 29.4V charging voltage, supporting DIY battery packs, portable power supplies, power equipment, and energy storage projects.

Core Selling Points:

The built-in cell balance function equalizes voltage between individual cells to help prevent uneven battery aging. The module provides a 15A continuous current limit and integrated overcharge, overdischarge, overcurrent, and short-circuit protection during charging and discharging. Its compact PCB design supports wiring for battery pack assembly, electric tool projects, and portable power applications.

Technical Specifications:

Model: STJF 7S BMS. Module type: 7S lithium battery management module. Nominal voltage: 25.9V. Charging voltage: 29.4V. Continuous current: 15A. Battery type: 7-series 18650 Li-ion battery pack. Functions: Cell balance and multi-safety protection. Protection functions: Overcharge, overdischarge, overcurrent, and short circuit.

Package Contents:

1 x 7S BMS Protection Board

Before Purchase:

Confirm that your battery pack uses 7 series 18650 Li-ion cells and matches the 25.9V nominal voltage and 29.4V charging voltage requirements. Verify that the application is suitable for the 15A continuous current limit and that the module's protection and wiring requirements match your battery pack assembly.