Automatically charge and maintain engine crank battery(s) while sensing and distributing 100% of the available charging amps to trolling motor or house bank battery(s). Fully charge and extend the life of your batteries with ProSport’s multi-stage performance charge profiles. Automatically charges and conditions your batteries with a built-in safe maintenance mode for long or short term storage. Digital Battery Type Selector: 3 Charge Profiles - User selectable performance charge profiles for: Flooded (lead-acid)/STD AGM, GEL & High Performance(HP) AGM. Compact and rugged design, 100% waterproof and shockproof, dual inline DC safety fuses for trolling motor / accessory battery banks, dynamic thermal output control, over voltage, overload, over temperature, reverse polarity, and ignition protection.