Victron Energy MultiPlus-II 12V 4000VA 120V Pure Sine Wave Inverter Charger, 160A Battery Charger, Dual AC Outputs, ESS Compatible, PMP122405100

The Victron Energy MultiPlus-II 12V 4000VA 120V Inverter Charger (Model 12/4k/160 160-50 120V, MPN PMP122405100) is a multifunctional pure sine wave inverter charger with a 160A adaptive battery charger and two AC outputs. Built for professional marine, yachting, vehicle, and land-based off-grid systems, it also provides the isolation and redundancy required for Energy Storage System (ESS) installations.

12V 4000VA Inverter Charger with 160A Adaptive Charging

The MultiPlus-II delivers 4000VA of pure sine wave power at 120VAC, with two AC outputs for flexible load management. Its 160A battery charger combines speed with efficiency through a smart adaptive charging algorithm that helps extend battery life.

PowerAssist and PowerControl for Generators and Shore Power

The MultiPlus-II prevents overloads on limited AC sources such as generators or shore power connections. First, PowerControl automatically reduces battery charging when an overload would otherwise occur. If more power is needed, PowerAssist boosts the generator or shore supply with energy from the battery.

Built-In UPS Backup Power

If grid power fails or shore or generator power is disconnected, the MultiPlus-II switches to inverter power in less than 20 milliseconds. Computers and other sensitive electronics continue operating without disruption.

ESS and Dynamic ESS Energy Storage

The MultiPlus-II is the key component of a Victron Energy Storage System. Dynamic ESS automatically switches between or combines grid, battery, and solar energy based on live electricity pricing, predicted energy use, and expected solar yield, so your system always draws on the most cost-effective energy source.

Remote Monitoring and Control

Paired with a GX device such as the Cerbo GX, the MultiPlus-II can be monitored and controlled locally over LAN or remotely from anywhere using the free VRM app and VRM portal. Adjust inverter settings, auto-start a backup generator, and manage your full system from a phone, tablet, laptop, or PC.

Parallel and Three-Phase Expansion

The MultiPlus-II supports parallel and three-phase configurations, so your system can scale as power requirements grow.

Key Features

• 12V 4000VA pure sine wave inverter charger
• 160A adaptive battery charger
• 120VAC output with two AC outputs
• PowerControl and PowerAssist technology
• UPS function with transfer under 20 ms
• ESS and Dynamic ESS compatible
• Isolation and redundancy for ESS installations
• Remote monitoring with Cerbo GX and VRM
• Generator auto-start capability via GX device
• Supports parallel and three-phase operation

Applications

• Professional marine and yachting systems
• Vehicle and RV power systems
• Land-based off-grid systems
• Energy storage systems (ESS)
• Home and business backup power

Specifications

The Victron Energy MultiPlus-II 12V 4000VA 120V Inverter Charger delivers pure sine wave power, 160A adaptive charging, UPS backup, and Dynamic ESS energy management for marine, vehicle, off-grid, and energy storage systems.