3 YEAR WARRANTY - Minn Kota ® 's Precision On-Board Battery Chargers automatically clean and condition the battery to extend run time and battery life. 15-amp Precision Chargers are half the weight of traditional on-board chargers. One of the few chargers that allows the user to independently select and charge a different type of battery in each bank: flooded lead acid, gel, AGM (Absorbed Glass Mat) and HP (High Performance) AGM battery types. This allows you to safely, efficiently, and quickly charge the ideal battery type for each application onboard whether it's for starting, trolling motors, house, windlass, or any other function; no more settling for second best! An intuitive LED Display for each bank on the charger that gives an independent readout of connection status, power status, state of charge and selected battery type. The chargers are also short circuit, reverse polarity and ignition protected.