ACOPOWER 30A MPPT Solar Charge Controller Solar Charge with LCD Display. 12/24VDC automatically identifying system voltage. Battery voltage range: 8V32V. Charging Power and Current Limitation Function. PV short circuit / PV reverse polarity /Battery over voltage /Battery over discharge / Battery reverse polarity / Load overload protection. 100V PV input allows more panels connected in series. Work with Sealed(default), Flooded, Gel Battery. Installion Notes: First connect the battery;Then connect the load;Finally connect the solar panel. 1 x 30A MPPT Solar Charge Controller. 1 x User Manual.