NEW Minn Kota MK230D 2-Bank On-Board Boat Battery Charger 30 Amp Waterproof. MINN KOTA 2-BANK, 30 AMP DIGITAL ON-BOARD BATTERY CHARGER MK230D For sale, a new in the box Minn Kota MK230D digital on-board battery charger. 2 bank x 15 amps for a total of 30 amps total output. This digital on-board charger is engineered with a micro-processor-based design to protect your battery, charge faster and help you stay on the water longer. Monitors temperature and state-of-charge. Enhanced status codes display charge stage, maintenance mode status, any error notifications and full charge. Automatic shut-off feature extends battery life by shutting down when charging is complete. Each set of battery leads is also equipped with in-line fuses for added protection Features/Specifications: 2 charging banks 15 amps per bank 30 amps total