An automatic, 10 amp, 3-stage portable charger designed for fast, full charging and maintenance. Completely sealed in a durable potted case, it's waterproof, shockproof and corrosion-proof. It features built-in electronic overload and thermal protection, LED ready indicators, reverse polarity protection, and a carrying handle for easy portability. This powerful 10 amp unit comes pre-wired with a 6' AC cord and a 4' DC output wire with alligator clips.