Fully automatic microprocessor controlled unique automatic battery charger maintains both 6V (volt) and 12V batteries keeping them at full charge using float-mode monitoring. Perfect for charging small batteries. Great for maintaining small and large batteries kept in storage - motorcycles, classic cars, RVs, boats. Quick-connect harness - snap either connector into place in seconds - use the 50A (amp) clamps, 12V accessory plug or permanently attach the ring connectors - great for hard to reach motorcycle batteries. Auto voltage detection - the charger automatically determines whether the connected battery is a 6V battery or a 12V battery. Other features include scrolling messaging display, automatically switches from full charge to float-mode monitoring, and reverse-hookup protection. Includes hook attachment for hanging outside the work area for safety and convenience. 5 year warranty.