Victron MultiPlus-II 8kVA 48V Inverter-Charger

Victron MultiPlus-II 8kVA 48V — The Heart of a Premium Solar Installation

The Victron MultiPlus-II 8kVA 48V is the flagship residential/light commercial inverter-charger from the world’s most trusted off-grid power brand. Combining an 8,000W pure sine wave inverter with a 140A battery charger, the MultiPlus-II is the central component of a comprehensive home solar energy system.

Key Specifications

• Continuous Output: 8,000W
• Peak Output: 16,000W (surge)
• Battery Charger: 140A @ 48V
• AC Input: Single-phase, 16–100A (adjustable current limit)
• Transfer Time: Less than 20ms
• Efficiency: Up to 96%
• VE.Bus communication for multi-unit and three-phase configuration
• ESS (Energy Storage System) compatible
• Supported Batteries: Lithium (LiFePO4, BYD, Pylontech), lead-acid
• Operating Temp: -40°C to +65°C (derating above 40°C ambient)
• Warranty: 5 years Victron

PowerControl and PowerAssist

PowerControl limits the current drawn from the AC input (grid or generator) to a set maximum — preventing tripped breakers when running large loads. PowerAssist boosts available AC power with battery energy when a large load exceeds the available AC supply — the inverter supplements grid power to prevent overload. These two features make the MultiPlus-II uniquely capable in installations with limited grid supply or generator capacity.

ESS — Energy Storage System Mode

In ESS mode, the MultiPlus-II integrates with solar, grid, and batteries to maximize self-consumption and minimize electricity bills. During the day, solar charges batteries and powers loads. At night, stored energy is used before drawing from the grid. During load shedding, the system automatically switches to battery/solar with zero interruption to connected loads.

VE.Bus Communication

Multiple MultiPlus-II units can be paralleled (up to 6 units, 48kW) or configured in three-phase using VE.Bus — no additional communication hardware required. This scalability makes the MultiPlus-II the preferred choice for installers building commercial-grade systems.

FAQ

Does the MultiPlus-II work with Pylontech batteries?

Yes. The Victron MultiPlus-II has native integration with Pylontech US2000, US3000, and US5000 batteries via CAN-BUS communication through a Victron GX device. Battery state of charge, cell voltages, and temperature are visible in the Victron VRM portal.

What GX device do I need with the MultiPlus-II?

For comprehensive monitoring and ESS functionality, a Victron Cerbo GX or Venus GX is required. The Cerbo GX connects to our VRM portal for remote monitoring from any device worldwide.

Can the MultiPlus-II operate fully off-grid?

Yes. With sufficient solar (via SmartSolar MPPT) and battery capacity, the MultiPlus-II operates completely off-grid. It is one of the most capable off-grid inverters available.