Guest On-Board Battery Charger - 30A - 3-Bank This Guest On-Board Battery Charger - 30A - 3-Bank is for all 12 volt flooded and AGM lead acid batteries. It features full automatic 5-stage performance charging and an auto-maintain energy saver mode. All models of this on-board battery charger are pre-wired for easy installation. With in-line fuses for maximum DC wire protection and wiring and battery fault detection, this charger is designed for extreme durability and long lasting use. Features M