13S 25A LiFePO4 Battery Management System (BMS)

The 13S 25A LiFePO4 Battery Management System (BMS) is a battery protection module designed for lithium iron phosphate battery packs containing 13 cells connected in series. It monitors the battery pack during charging and discharging, helping protect individual cells against unsafe voltage conditions while supporting cell balancing.

The QS-B413ANI-25A V1.05 module features four power MOSFETs, dual current-sensing resistors, and a dedicated balance connector. Its 25A current rating makes it suitable for compatible battery-powered equipment, custom energy storage systems, and light electric vehicle projects.

The included 14-pin balance cable provides connections for monitoring the series-connected cells during installation. Correct wiring and compatibility with the battery chemistry are essential for reliable operation.

Features:

• 13S LiFePO4 Support: Designed for 13-cell lithium iron phosphate battery packs connected in series.

• 25A Current Rating: Supports continuous current up to the specified rating under suitable operating conditions.

• Cell Balancing: Helps maintain more consistent voltage levels across individual cells.

• Battery Protection: Supports protection against unsafe battery operating conditions.

• Power MOSFETs: Uses four onboard MOSFETs for charge and discharge switching.

• Current Sensing: Dual sense resistors support current monitoring for protection functions.

• Balance Cable Included: Supplied with a 14-pin cable for cell connections.

• Dedicated Terminals: Includes separate battery-negative, discharge-negative, and charge-negative pads.

• Compact PCB Design: Suitable for integration into custom battery packs and DC power systems.

Specifications:

• Product Type: Battery Management System (BMS)

• Model: QS-B413ANI-25A V1.05

• Battery Chemistry: LiFePO4 (Lithium Iron Phosphate)

• Series Configuration: 13S

• Continuous Current Rating: 25A

• Charging Voltage: 47.45V DC, as listed by the supplier

• Cell Charging Voltage: 3.65V per cell

• Typical Battery Cutoff Voltage: 27.3V, as listed by the supplier

• Typical Cell Cutoff Voltage: 2.10V, as listed by the supplier

• Power Components: 4 MOSFETs and dual current-sensing resistors

• Terminal Pads: B-, P-, and C-

• Weight: Approximately 40g

• Package Includes: 1 × 13S 25A LiFePO4 BMS module and 1 × 14-pin balance cable

Applications:

• Custom 13S LiFePO4 battery pack assembly.

• Battery protection and cell balancing projects.

• Compatible electric bikes and scooters.

• Light electric vehicle battery systems.

• Portable energy storage systems.

• Solar power backup battery packs.

• Custom DC power supply projects.

• Electronics and battery-powered equipment requiring multi-cell protection.