3S 40A Lithium Battery BMS Board

Improve battery pack management with this 3S 40A Lithium Battery BMS Board. Designed for compatible 3-cell lithium-ion battery packs, this compact protection board helps manage electrical conditions during charging and discharging. Featuring overcharge and overcurrent protection functions, it is a practical component for DIY battery assemblies, cordless drill battery repairs, and electronic projects.

Key Features

• 3S Battery Configuration: Designed for three lithium-ion cells connected in series, with a nominal pack voltage of 11.1V and a maximum charging voltage of 12.6V.

• 40A Advertised Rating: Listed with a 40A current rating for suitable battery applications.

• Overcharge Protection: Designed to help prevent battery cells from exceeding their specified charging voltage.

• Overcurrent Protection: Helps protect compatible battery packs against excessive current.

• Cell Balancing Function: Advertised with balancing support to help manage voltage differences between connected cells.

• Compact Circuit Board: Suitable for installation in compatible battery packs and electronic assemblies.

Why Choose Our 3S 40A Lithium Battery BMS Board?

This 12.6V battery protection board provides essential battery management functions in a compact electronic component. Its protection and advertised balancing capabilities make it useful for battery maintenance and custom power projects. Whether you're assembling a compatible battery pack or replacing a damaged board, this lithium battery protection circuit offers a practical solution.

Perfect For

• DIY lithium-ion battery packs

• Compatible cordless drill battery repairs

• Battery pack maintenance

• Electronic hobby projects

• Portable power assemblies

• Custom rechargeable battery applications

Product Specifications

• Battery Configuration: 3S (3 cells in series)

• Battery Chemistry: Compatible lithium-ion cells, subject to manufacturer specifications

• Nominal Pack Voltage: 11.1V

• Maximum Charging Voltage: 12.6V

• Advertised Current Rating: 40A

• Functions: Overcharge protection, overcurrent protection, and advertised cell balancing

• Product Type: Battery management and protection circuit board

Important Usage Information

This 3S battery management system is intended for users experienced in lithium battery assembly and electrical safety. Verify the wiring diagram, cell chemistry, current limits, and charging requirements before installation. A BMS is not a standalone battery charger and must be used with a suitable lithium-ion charging system.

Support Your Battery Projects

Build and maintain compatible lithium-ion battery packs with a compact protection board designed for practical battery management applications.