Digital microprocessor control on MinnKotas Portable Battery Charger monitors the ambient temperature and state of charge to deliver a more regulated, precise charge for your battery. Automatic temperature compensation adjusts output to ensure a full, fast charge at any temperature, protecting batteries from over- or undercharging. Automatic shut-off when charging is complete extends battery life. Multistage charging delivers a fast, precise charge profile by automatically controlling current and voltage without overcharging your batteries. Features short-circuit and reverse-polarity protection. Available: 5 Amps, 10 Amps. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Battery Charger.