The MK 110P Marine Charger includes the following features: Fully automatic 3-stage charging(bulk, absorption, maintenance). 10 amps total output. LED display indicates power ON, charging, full charge, and check connection. Short circuit and reverse polarity protection prevents the charger from operating if improperly connected to the battery. Low line voltage compensation delivers true rated amp output, even when input voltage drops. For use with 12V/6-cell batteries(50-130 amp hour rating) that are flooded/wet cell, maintenance free, or starved electrolyte(AGM) only. FCC compliant.