This 50 AMP solar panel controller efficiently increases battery life and improves performance using efficient PWM charging. Designed for remote power solar applications, this advanced charge controller can be used with 48 Volt, 36 Volt, 24 Volt, and 12 Volt lead-acid and AGM batteries, as well as 12 Volt lithium batteries. Once connected, the controller is able to automatically detect the voltage of your battery to regulate the charge from a connected solar panel.