Victron Energy MultiPlus-II 48V 5kVA 120V AC Output, 70A Battery Charger, Low Frequency Inverter-Charger, UL 1741

Victron MultiPlus-II 48V 5kVA Overview

Built with low-frequency architecture for durability and surge strength, the MultiPlus-II delivers:

•4,000W continuous output
•9,000W surge capacity
•Ultra-low 15W idle consumption

This allows pumps, compressors, and motor-driven appliances to start smoothly without tripping breakers or causing voltage drops.

With one AC input and two AC outputs, you can prioritize essential circuits while protecting battery reserves.

Key Features of the Victron MultiPlus-II

PowerAssist Technology

When incoming AC power is limited, PowerAssist automatically supplements it with battery power, adding up to 4kW when needed. If excess AC power is available, it intelligently charges your batteries.

PowerControl for Limited Power Sources

Set a maximum AC input current when using shore power or a small generator. The system prevents overload by managing incoming power before breakers trip.

Perfect for RV parks, generators, and constrained electrical setups.

Dual AC Outputs

Output 1: Always active for critical loads

Output 2: Active only when AC input is present, which is ideal for non-essential loads like water heaters

Advanced System Programming

Fully configurable through VictronConnect software, allowing you to automate system responses based on temperature, load demand, and operating conditions.

Best Use for 48V Inverter-Chargers

The MultiPlus-II is ideal for:

•Off-grid homes
•Solar battery systems
•RV and mobile installations
•Backup power setups
•Hybrid generator systems

Its high surge capability makes it especially effective for systems running pumps, HVAC components, and other motor-driven equipment.

Solar and Battery System Compatibility

Designed for 48V battery banks, the MultiPlus-II integrates seamlessly with solar charge controllers and scalable energy systems. It works as the intelligent core of a complete off-grid or solar setup.

For a ready-to-build solution, explore the Residential 10kVA 120/240V Off-Grid Power System Kit featuring the MultiPlus-II.

Frequently Asked Questions

How much power does it provide?
4,000W continuous with up to 9,000W surge capacity.

Can it handle high startup loads?
Yes. It’s designed specifically for motors, pumps, and compressor-based equipment.

Does it work with solar systems?

Yes. It integrates seamlessly into 48V solar and battery storage systems.

What makes PowerAssist valuable?
It prevents overload shutdowns by supplementing incoming AC power with battery power automatically.