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.The controller's interface includes an LED light which flashes during charging and changes to solid once charging is completed. A four-light indicator tells you the battery charge level and a warning LED helps you easily identify connection issues.With its three-stage charging from initialization to low voltage protection to low voltage recovery reengagement, you'll always know if you have a correct connection, when your battery is recharging, and when the battery is fully charged.CAPACITYMax output of 12 volt DC and 30 AMPs, and max input voltage of 100 volts, 12 volts at 750 watts, 24 volts at 1,500 watts, 36 volts at 2,250 watts, or 48 volts at 3,000 watts    3-STAGE FUNCTIONBuilt with 3-stage charging; determines battery connection, voltage, and charge level to automatically turn the output load on or off based on the selected battery voltage    EASY TO USE: Features an LCD screen and LED indicator to easily track battery status; capable of self-diagnosing errors and automatically detects the battery voltage    SAFETY FEATURESFeatures spark proof and reverse hookup protection; compatible with 12, 24, 36, and 48 volt lead acid, AGM, GEL, and 12 volt lithium batteries    EFFICIENTIncreases battery life and performance with PWM charging, 8 programmable timers, and programmable charging voltage function; temperature sensors for battery charging compensationCalifornia Residents WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov