ProTournament Chargers deliver professional-grade performance with 2 to 3 times faster charge times than traditional battery chargers. Proven to condition and extend the life of your batteries, these chargers provide 100% charging output with AC power as low as 90V AC while using long extension cords at the dock or home. With true Distributed On-Demand 3-Step Charging technology, each step is electronically controlled for the fastest charge. The rugged "space saver" all aluminum housing is half the height and weight of leading traditional chargers. These waterproof and saltwater-tested chargers feature reverse polarity, ignition, and over-temp protection. Prewired for easy installation. Limited lifetime warranty.