Guest On-Board Battery Charger - 20A - 2-Bank Guest On-Board Battery Chargers have been redesigned to provide optimum performance. This charger has dedicated battery charging, sending, and control per bank. Features in-line fuses for maximum DC wire protection and new digital charging technology providing long lasting use and exceptional durability. It is 100 waterproof and shock resistant for all fresh and saltwater applications. With individual sensing and control for every bank, this chargers