Minn Kota 1821032 MK-2-DC On-Board Alternator Marine Battery Charger, 2 Bank x 10 Amps

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. Additional features and information: 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, and they turn off when the engine stops, LED indicators display power-on, charging and check connection, Waterproof, shock and vibration-resistant design delivers exceptional durability in harsh, marsh environments, Engineered with advanced corrosion protection to withstand the destructive effects of saltwater, For use with 12 volt systems with 12V / 6-cell batteries that are flooded/wet cell, maintenance free or starved electrolyte (AGM) only, Includes one 6-foot fused input cable and two 6-foot fused output cable, FCC compliant and includes a 3 year warranty.