Minn Kota MK-315D 3 Bank x 5 Amps [1823155]MK 315D 3 Bank x 5 Amps ON BOARD MARINE BATTERY CHARGERS Reengineered with a microprocessor based design, digital on board chargers protect your battery, charge faster, and help you stay on the water longer. DIGITALLY CONTROLLED We set out to build a smarter charger, and the result is the ingenious microprocessor based design of onboard units. By monitoring factors like temperature and state of charge, they deliver a faster, more regulated, precise