Features: The Battery chargers Control Board automatically starts charging when battery voltages drops to 10.5V 11.5V and stops at 14.4V 14.8V to prevent overcharging, ensuring safe and efficient 12V battery management for performances. Featuring red indicators light that illuminates during charging and turn off when full, this control board uses relays to disconnect the 220V input for energies savings, with adjustable voltages setting via VR1 for precise control and stable operations. for electronics hobbyists, enthusiasts, and professional working on projects like automotive battery maintenance or renewable energies systems, providing user friendly solution for battery charging needs. Perfect for scenarios such as car battery charging, solar power setups, or backups, this module delivers automated charging to keep 12V batteries optimally charged in various applications. With its circuit board construction and excellent performances, this battery charging control board offer long service life and easy setups, making it dependable for consistent and worryfree operations. Specifications: Supply voltages: 13.8V-14.8V relays closing voltages: 12.4V relays disconnect voltages: 14.8V Size:50x32mm Package Includes: 1PC M601 Battery Charging Control Board note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.