3S 25A BMS Battery Protection Board – 3SJH25A-C

The 3SJH25A-C 3S 25A BMS Protection Board is designed for compatible three-series-cell lithium-ion battery packs. It helps protect the battery pack from certain abnormal electrical conditions during charging and discharging.

With a standard 3S Li-ion pack's 11.1V nominal voltage and 12.6V full-charge voltage, this board is suitable for compatible battery-powered electronics, backup lighting and DIY battery projects, provided the board's current capability matches the application.

Key Features

• 3S battery configuration for three cell groups connected in series.

• 25A advertised current rating, subject to confirmation for continuous operation.

• Overcharge protection to help prevent excessive cell voltage.

• Over-discharge protection to help prevent excessive battery discharge.

• Overcurrent and short-circuit protection, as advertised for this model.

• Compact PCB design for integration into compatible battery assemblies.

Technical Specifications

Current ratings, protection thresholds and dimensions are based on published listings and should be confirmed against the exact board revision.

Applications

• Compatible 3S 18650 lithium-ion battery packs

• LED backup and emergency lighting

• Small backup-power projects

• Portable electronic equipment

• DIY battery-powered electronics

Installation and Safety

Use a dedicated 12.6V CC/CV charger for a standard 3S lithium-ion battery pack. A BMS is a protection circuit, not a standalone charger.

Use compatible cells and ensure the cells, wiring, connectors and load can safely handle the required current. Confirm the battery connection pads and polarity on the actual PCB before installation. Incorrect wiring can damage the board and battery and may cause fire.

Package includes: 1 × 3S 25A BMS protection board, model 3SJH25A-C.