The Victron MultiPlus-II 3000VA inverter charger is the core power-conversion unit we recommend for serious RV, marine, off-grid, and home energy storage builds. We carry the full UL-listed 120V lineup — pick the 12V, 24V, or 48V configuration that matches your battery bank, and you get a pure sine wave inverter, integrated battery charger, and PowerAssist all in a single rack-friendly enclosure.

Why Operators Choose the MultiPlus-II

• Clean 3000W pure sine wave AC output — runs sensitive electronics, refrigeration, and motor loads without distortion
• Built-in battery charger — recharges from shore, generator, or grid input the moment AC is detected
• PowerAssist technology — supplements limited shore or generator power with battery energy so you never trip a 30A pedestal
• Sub-20-millisecond UPS transfer — keeps computers, modems, and home automation up during outages
• ESS-ready (48V model) — drops into Victron Energy Storage Systems for self-consumption, peak shaving, and grid-tied solar
• Parallel and split-phase capable — stack multiple units for higher capacity 240V North American split-phase
• VictronConnect + VRM ready — pair with a Cerbo GX or GX Touch for full local and remote monitoring

Configurations Available

• 12/3000/120-50 — UL 458 (RV/marine): 12V battery input, 120A built-in charger, listed for mobile use
• 24/3000/70-50 — UL 458 (RV/marine): 24V battery input, 70A charger, ideal for mid-size mobile installs
• 48/3000/35-50 — UL 1741 (residential ESS): 48V battery input, 35A charger, certified for grid-interactive solar and energy storage

Specifications

• Continuous AC output: 3000VA / 2400W (25°C)
• AC output voltage: 120V, 60Hz pure sine wave
• Peak power: 6000W
• Battery compatibility: Lithium (LiFePO4), AGM, gel, lead-acid
• Transfer time: <20ms
• External CT input: Up to 32A for advanced PowerAssist
• Anti-islanding protection: Built in (48V UL 1741 model)
• IP rating: IP22 — indoor / protected enclosures
• Communication: VE.Bus, Bluetooth (with optional dongle), GX device support
• Country of origin: Manufactured by Victron Energy

Who This Is For

We sell this unit to RV builders running 30A or 50A shore service who need clean inverter power plus a charger in one box, marine refit customers replacing aging Magnum or Xantrex hardware, and home solar installers building around the Victron 48V ESS architecture. If your build calls for split-phase 120/240V, we can advise on stacking two units in parallel — call our team before you order.

Why Buy From Urban Supply

• Authorized Victron Energy Dealer — every order ships factory-fresh with full manufacturer warranty
• Free US Shipping on Orders Over $299 — fast dispatch, US-based fulfillment
• 0% Financing Available — Shop Pay Installments and other plans at checkout
• Price Match Guarantee — find it cheaper from another authorized US dealer and we will match it
• 30-Day Return Policy — manufacturer warranty + shipping insurance included on every order

Shipping & Lead Time

Ships within 1-5 business days from a US warehouse via standard ground service (continental US — excludes Alaska and Hawaii). Tracking is emailed automatically once your order leaves the warehouse.

Warranty

Covered by Victron Energy's 5-year limited manufacturer warranty against defects in materials and workmanship. Urban Supply is an authorized Victron dealer — warranty registration and claims are handled directly through the manufacturer. Contact our team for warranty support.

Browse the full Solar & Battery Power collection or shop more Victron Energy products at Urban Supply.