Victron MultiPlus-II 48/3000 - 35-50 - 120V - UL Approved

The Victron MultiPlus-II 48/3000 - 35-50 - 120V - UL Approved is a marine-grade inverter/charger built for serious boaters and anglers who demand reliable, clean power at anchor or in remote anchorages. After decades on the water, you know that engine-dependent charging drains fuel and forces you to idle when you'd rather be fishing or enjoying quiet time offshore. This unit solves that problem by seamlessly inverting your lithium or lead-acid battery bank to deliver 3000 watts of continuous AC power while simultaneously charging those batteries from your shore power connection or backup generator.

Built on Victron Energy's proven MultiPlus platform, the 48/3000 topology accepts a 48-volt DC input and outputs 120V AC at up to 3000 watts continuous (with 6000-watt surge capacity), making it ideal for mid-size sportfish boats, trawlers, and offshore cruisers. The 35–50 ampere input rating means it charges efficiently from either a 35-amp or 50-amp shore power pedestal, automatically selecting the correct draw to avoid tripping breakers on older marina systems. UL certification ensures marine-grade safety compliance, and the unit's three-stage inverter technology delivers pure sine wave output—critical for running GPS plotters, VHF radios, galley equipment, and modern electronics without noise or damage. The compact 14 × 10 × 25-inch footprint fits tight engine rooms, and at 44 pounds, installation in overhead cabinets or below-deck compartments is manageable with proper mounting.

Experienced offshore cruisers and tournament anglers benefit most from this inverter, especially those running lithium battery systems or planning extended trips away from the dock. The MultiPlus-II integrates seamlessly with Victron's Cerbo GX monitoring system and smartphone app, letting you track battery state-of-charge and manage loads from the helm or cabin. Installation requires proper 48V cabling, a compatible breaker, and integration with your boat's AC panel; work with a qualified marine electrician if you're unfamiliar with 120V/240V shore power systems. Whether you're anchored in a remote cove waiting for the bite or living aboard between fishing seasons, this unit eliminates generator noise and fuel consumption while keeping every cabin outlet and appliance powered throughout the day.