6S 40A Lithium-Ion Battery Management System (BMS) 25.2V with Cell Balancing

The 6S 40A Lithium-Ion Battery Management System (BMS) is designed to protect and manage six-cell series lithium-ion battery packs with a maximum charging voltage of 25.2V. It monitors the battery pack during charging and discharging, helping protect the cells against unsafe operating conditions and supporting reliable performance in compatible battery-powered equipment.

With an integrated cell-balancing function, this BMS helps reduce voltage differences between series-connected cells. It also provides protection against overcharge, over-discharge, excessive current, and short circuits. The module is suitable for custom battery packs built with compatible lithium-ion cells, including common 18650-based configurations.

Its 40A current rating makes it suitable for selected power tools, LED lighting systems, portable DC equipment, and other applications where the battery load remains within the module's electrical and thermal limits.

Features:

• 6S Battery Configuration: Designed for six lithium-ion cells connected in series.

• 25.2V Full-Charge Voltage: Compatible with standard lithium-ion cells rated for 4.2V maximum charging voltage per cell.

• 40A Discharge Rating: Supports discharge currents up to the specified rating under suitable operating conditions.

• Cell Balancing: Helps equalize cell voltages during charging.

• Overcharge Protection: Helps prevent individual cells from exceeding their specified voltage limit.

• Over-Discharge Protection: Helps protect cells from excessive discharge.

• Overcurrent Protection: Helps interrupt current when the configured protection threshold is exceeded.

• Short-Circuit Protection: Helps protect the battery pack and connected equipment against short circuits.

• Compact PCB Design: Suitable for integration into custom battery assemblies and electronic equipment.

Specifications:

• Product Type: Battery Management System (BMS)

• Battery Chemistry: Lithium-ion

• Series Configuration: 6S

• Nominal Battery Voltage: 21.6V–22.2V, depending on cell rating

• Maximum Charging Voltage: 25.2V

• Continuous Discharge Current: 40A, supplier-listed rating

• Cell Balancing: Supported

• Protection Functions: Overcharge, over-discharge, overcurrent, and short-circuit protection

• Board Dimensions: Approximately 98 × 34 × 1.2 mm, as listed for this product version

• Package Includes: 1 × 6S 40A BMS protection board

Applications:

• 6S lithium-ion battery pack assembly.

• 18650 battery packs.

• Cordless drills and compatible power tools.

• Battery-powered agricultural sprayers.

• LED lighting systems.

• Portable DC power supplies.

• Compatible low-power inverter systems.

• DIY electronics and battery projects.