Minn Kota MK-2-DC 2 Bank DC Alternator Charger Brand New Includes Three Year Warranty The Minn Kota 2-DC dual bank DC alternator on-board charger uses current from boat’s alternator to re-charge trolling batteries when main engine is running. It features a waterproof, shock and vibration-resistant construction, and its charge-on-the-fly circuitry turns off when the engine stops. This charger is equipped with LED indicators that display power-on, charging and check connection. With a low-profile enclosure and a waterproof, corrosion-resistant design, our DC Alternator Chargers use current from your boat’s alternator to re-charge trolling batteries when the main engine is running. Master cutoff switch turns charging off while the engine isn’t in use. Experience effortless, accurate charging with up to 20 amps of total output. MK-2-DC Features Product # 1821032 On-board DC Alternator Charger 20 Amps Total Output Alternator Charging Design Uses Current From Boat's Alternator To Re-Charge Trolling Batteries When Main Engine Is Running Charge-on-the-Fly Circuitry Puts Additional Juice Back In Your Trolling Batteries On Runs Between Fishing Spots Turns Off When The Engine Stops LED indicators Saltwater Tested Fully Corrosion Resistant Waterproof, Shock Vibration-resistant Aluminum Construction Size 10- L x 7- W x 3- H For use w/ 12V system w/ 12V/6-cell Batteries That Are Flooded/Wet Cell, Maintenance Free or Starved Electrolyte AGM only FCC Compliant UL Listed to Marine Standard 1236 Includes 1 6' Fused Input Cable 2 6' Fused Output Cable