Guest On-Board 20-Amp 2-Bank Battery Charger

The Guest On-Board 20A 2-Bank Battery Charger has dedicated charging, sensing and control per bank, rated IP67 and ignition protected.

Dedicated sensing per bank is what separates this from a charger that treats two batteries as one load. Each bank gets its own voltage reading, so a starting battery already full and a house bank drawn down each receive what they actually need rather than a shared compromise.

Wiring and battery-fault detection identify installation or battery problems rather than simply failing to charge. That matters on a boat, where a charger that quietly does nothing looks identical to one working fine until the batteries go flat.

Five-stage digital charging advances automatically, with an expanded LED monitor showing bank status and an energy-saving maintenance mode. IP67 waterproof shock-resistant construction suits harsh marine use, with protection covering reverse polarity, over-current, over-voltage, over-temperature and ignition hazards, plus in-line DC fuses. Explore more on-board battery chargers.

• Dedicated sensing per bank, not a shared reading
• A full starter and a flat house bank get what each needs
• Fault detection identifies wiring and battery problems
• IP67 shock-resistant with in-line DC fusing