Peak PKC0AL 2/10-Amp Linear Marine Charger Manually charges both 6 and 12 volt batteries LED indicates when AC power is supplied and 12 volt battery is fully charged Heavy duty cables and steel nickel plated clamps are corrosion resistant for better connections and durable plastic housing Snap disconnect harness quickly connects clamps or ring connection to top or side-mounted hard to reach battery terminals Ideal for charging or boosting during winter season, when starting performance of vehicle battery is lowered by cold or extreme weather conditions