Minn Kota Mk-2-Dc Dual Bank DC

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. Number of Charging Banks: 2 Total Output: 20 Amps Size: 10 1/2" (Length) x 7 1/2" (Width) x 3 1/2" (Height) Weight: 6 Pounds