Inverter-charger MultiPlus-II 48/6k5/100-50
An advanced inverter-charger that combines an AC inverter, battery charger, and automatic UPS in a single package. The MultiPlus-II ensures continuous power supply, intelligent energy management, and full integration with energy storage and photovoltaic systems. UPS mode provides instant switching between mains power and battery backup, ensuring uninterrupted operation of sensitive equipment—without restarts or interruptions. MultiPlus-II works with Victron inverters and charge controllers, integrating with both photovoltaic installations on-grid , What off-grid This allows for the creation of flexible hybrid systems that combine the grid, PV, generator, and energy storage into one coherent system.
Multifunctionality and reliability
MultiPlus-II 48/6k5/100-50 combines three key functions in one device:
- Inverter - provides pure sinusoidal voltage for AC receivers.
- Battery charger - charges the battery bank quickly and safely.
- Automatic UPS - immediately switches power to batteries in the event of a mains outage.
Thanks to this, the system ensures continuous power supply without any noticeable interruptions for the user, ideal for both home and professional applications.
Advanced energy management
MultiPlus-II uses intelligent functions PowerControl and PowerAssist which enable:
- Limiting the maximum power consumption from the grid or generator.
- Automatic support of the battery power supply during peak load situations.
- Avoiding overloading the electrical system and tripping protection devices.
The system dynamically responds to load changes, optimizing the use of available energy sources.
Flexible system configuration
MultiPlus-II 48/6k5/100-50 enables:
- Work parallel - connecting several devices to increase power.
- Work three-phase - construction of 3-phase systems with full synchronization.
- Full remote monitoring and control through the portal Victron VRM.
Thanks to this, the system can be easily scaled and adapted to the growing needs of the installation.
PowerAssist and PowerControl
Functions PowerAssist and PowerControl automatically manage
energy consumption and supply:
- They limit overloading of the public grid or generator by adhering to a given power limit.
- They support the battery power supply when the power demand is too high.
- They ensure maximum utilization of available resources without the risk of outages.
This makes MultiPlus-II ideal for installations with limited connection power.
Power supply during a mains failure
MultiPlus-II works as professional UPS - in the event of a power outage from the mains, the
automatically switches to battery power, without any noticeable interruption for the user.
This allows you to safely power:
- Computer hardware and servers.
- Control systems and automation.
- Emergency lighting and key domestic or industrial consumers.
Main features
- Integration with energy storage - an ideal element of ESS systems.
- PowerAssist and PowerControl functions - intelligent management of power and energy consumption.
- Power supply during a mains failure - automatic switch to batteries.
- Two independent AC outputs - selective power supply to different groups of receivers.
- Parallel and three-phase operation - possibility of increasing power and building 3-phase systems.
- Remote monitoring and configuration - via Victron VRM and the VictronConnect app.
- Automatic UPS mode - instant switching of the power source.
- Compatibility with PV systems - cooperation with Victron inverters and regulators.
- Victron Advanced Communications - rich integration options with other devices.
Key product advantages
Integration with energy storage
MultiPlus-II works with systems ESS (Energy Storage System), enabling intelligent storage and use of energy – both from the grid and photovoltaic installations. This allows for reducing electricity bills and increasing self-consumption of energy from renewable sources.
Two independent AC outputs
The device has two AC outputs:
- First - powered whenever energy is available (from the mains or battery).
- Second - active only when mains power (or generator) is present.
This allows for selective power supply to receivers, e.g. disconnection of less important devices
when operating on batteries.
Parallel and three-phase operation
MultiPlus-II can work:
- IN parallel system - to increase the total power of the system.
- IN three-phase system - for powering 3-phase installations.
Thanks to this, the device will work well both in small home installations,
and in larger industrial systems.
Remote monitoring and configuration
MultiPlus-II enables full control via the Internet and locally:
- Victron VRM - online portal for monitoring and remote management.
- VictronConnect - application for local configuration and work preview.
The user has constant access to information about the system status, event history
and can remotely change operating settings.


