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Victron Energy

Victron Energy MultiPlus-II 12/3000 Inverter Charger (120V) - 3000VA, 120A Charger, 50A Transfer Switch, PowerAssist (PMP122305122)

Victron Energy MultiPlus-II 12/3000 Inverter Charger (120V) - 3000VA, 120A Charger, 50A Transfer Switch, PowerAssist (PMP122305122)

⚡ High Performance | ↗ More Efficiency | ✓ Reliable Power
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Victron Energy MultiPlus-II 12/3000 120V Inverter Charger – 3000VA, 120A Charger, 50A Transfer Switch

The Victron Energy MultiPlus-II 12/3000 120V is an all-in-one pure sine wave inverter and battery charger for off-grid, marine, RV, backup power and energy storage applications. It combines a 3000 VA inverter, a 120 A integrated battery charger and a 50 A transfer switch in one unit, with intelligent charging and system integration.

PowerAssist and PowerControl

The MultiPlus-II prevents overload when you are connected to a limited AC source such as a generator, shore power or the grid. PowerControl automatically adjusts battery charging to prevent excessive demand, and PowerAssist supplements the available AC power with battery energy when more power is needed.

Built-In UPS Backup Power

If grid, generator or shore power fails, the MultiPlus-II switches automatically to inverter mode. The fast transfer time keeps sensitive electronics, computers and equipment running without interruption.

Energy Storage System (ESS) Compatible

The MultiPlus-II works with Victron solar charge controllers, lithium battery systems and grid-connected solar applications as a core component of an energy storage system.

Parallel, Split-Phase and Three-Phase Operation

Connect multiple MultiPlus-II units to increase available power. Parallel, split-phase and three-phase configurations suit residential backup power, commercial installations and large off-grid systems.

Remote Monitoring and Control

With a Victron GX device, you can monitor and control your power system locally or remotely from a smartphone, tablet or computer. Adjust settings, monitor battery performance, view system status and manage connected equipment. A built-in battery temperature sensor and a programmable relay for alarms and generator control are included.

Ideal Applications

RV power systems, marine electrical systems, off-grid solar installations, lithium battery banks, backup power solutions, and residential energy storage systems.

Specifications

  • Brand: Victron Energy
  • Model: MultiPlus-II 12/3000 120V
  • Manufacturer Part No: PMP122305122
  • DC Input Voltage: 9.5-17 V
  • Continuous Power Output: 3000 VA / 2400 W
  • Peak Power: 5500 W
  • Maximum Efficiency: 93%
  • Battery Charge Current: 120 A
  • AC Output Voltage: 120 V
  • AC Input Voltage: 90-140 VAC
  • Transfer Switch: 50 A
  • Waveform: Pure sine wave
  • Operating Temperature: -40°C to +65°C (-40°F to +149°F)
  • Weight: 9 kg (19.8 lbs)
  • Temperature Sensor: Built-in
  • Programmable Relay: Yes

Higher Performance

More power, longer range

Longer Lifespan

Up to 10x longer than lead-acid

Safe & Reliable

Built-in BMS protection

Easy Installation

Plug & play design

CUSTOMER REVIEWS

Trusted by Golf Cart Owners

See why customers choose us for dependable lithium power, premium brands and knowledgeable support.

“The lithium upgrade made a huge difference to my golf cart. Longer runtime, quicker charging and noticeably better performance.”

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Michael R. Verified Buyer
Florida

“I was unsure which battery setup would work with my cart, but the support was excellent and helped me choose the right option.”

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David T. Verified Buyer
Texas

“Shipping was quick and everything arrived well packed. Installation was straightforward and the battery has been performing great.”

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James P. Verified Buyer
Georgia

“Much lighter than my old lead-acid setup and I no longer have to worry about constant maintenance. Very happy with the upgrade.”

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Robert K. Verified Buyer
Arizona

“Great selection of quality brands and the website made it easy to compare the options for my 48V golf cart.”

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Chris M. Verified Buyer
South Carolina

“The new battery gives us plenty of range for a full day around the community. Power delivery stays strong even near the end of the charge.”

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Anthony S. Verified Buyer
California

“Helpful service, clear product information and a smooth ordering process. I would definitely shop here again for golf cart upgrades.”

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Brian L. Verified Buyer
North Carolina