Guest On-Board Battery Charger 15A / 12V - 3 Bank - 120V Input

The Guest On-Board Battery Charger 15A / 12V - 3 Bank - 120V Input is purpose-built for serious boaters and anglers who demand reliable power management on the water. Whether you're running a multi-day offshore expedition, anchored in remote fishing grounds, or docked at a marina, this three-bank marine charger keeps your engine battery, trolling motor battery, and auxiliary systems fully charged and maintained. Guest's redesigned on-board charger represents a generation forward in digital marine charging technology, engineered specifically for the demanding environment of saltwater and freshwater vessels.

This 15-amp charger delivers independent 12-volt charging to three separate battery banks simultaneously, allowing you to prioritize engine start batteries, deep-cycle trolling motor batteries, and auxiliary house batteries without manual switching or cross-contamination of charge profiles. The 120V AC input integrates seamlessly into shore power at marinas or via onboard generators, converting cleanly to DC output with modern microprocessor-controlled charging curves that prevent overcharging and extend battery lifespan. At 8 pounds and measuring 9 x 6 x 16 inches, the compact footprint fits easily into engine compartments or below-deck electrical enclosures, while its robust design handles the vibration, humidity, and salt spray inherent to marine environments.

Anglers operating center consoles, cabin cruisers, and offshore sportfishing vessels benefit most from three-bank charging, particularly when running both gas engines and electric trolling systems in the same trip. Installation requires standard 120V shore power connectivity and straightforward battery terminal connections—no special tools or marine electrician expertise needed for basic setups. The Guest charger's digital intelligence automatically maintains ideal charge levels during layovers, reducing sulfation and ensuring your batteries are always ready for the next cast, whether you're heading out at dawn or returning after sunset.