3S 18650 Li-ion BMS Protection Board with Equalizer 40A 12.6V

3S 18650 Li-ion BMS Protection Board with Equalizer 40A 12.6V

This 3S 40A BMS board with equalizer/balancing function is used for 12.6V 18650 lithium-ion battery packs. The balancing feature helps maintain better voltage balance between cells during charging, improving battery pack performance and safety. It is suitable for UPS systems, robot power packs, electric tools, portable power units, and higher-current electronics projects. It is useful where stable battery operation and cell balance are important. Package includes the same components as the picture.