3S 40A 18650 Lithium Battery Protection Board | 11.1V / 12.6V BMS

3S 40A 18650 Lithium Battery Protection Board | 11.1V / 12.6V BMS.

The 3S 40A Lithium Battery Protection Board is a high-current BMS designed for 3-cell (3S) 18650 lithium-ion battery packs. It supports 11.1V nominal and 12.6V full charge voltage, ensuring safe and stable battery operation.

This protection board safeguards your battery pack from over-charge, over-discharge, over-current, and short-circuit conditions. With a continuous discharge current of up to 40A, it is suitable for high-power DIY and industrial battery applications. Compact in size and easy to integrate, it helps extend battery life and improves overall safety.

Key Features

• Battery Type: 18650 Lithium-ion
• Configuration: 3S (3 cells in series)
• Nominal Voltage: 11.1V
• Full Charge Voltage: 12.6V
• Max Continuous Discharge: 40A
• Protection: Over-charge, over-discharge, over-current, short-circuit
• Compact and lightweight design

Applications

• DIY lithium battery packs
• Electric scooters and e-bikes
• Power tools and backup batteries
• Robotics and automation projects
• Solar and inverter battery systems

*product image for illustration purposes only, actual product may vary.