Victron MultiPlus-II The MultiPlus-II is a smart inverter that keeps your power on during load-shedding. It automatically switches between Eskom, solar, and batteries, so your lights and fridge stay on. It also protects your power system from overloading and recharges your batteries when the power returns. In short: it makes sure you always have electricity — even when Eskom doesn’t.

🔋 MultiPlus-II with ESS Functionality – Overview

The MultiPlus-II combines an inverter and a charger in one compact unit. It includes all the standard MultiPlus features, with an added external current sensor option. This allows it to handle PowerControl and PowerAssist up to 50 A or 100 A — perfect for systems where grid or generator current needs to be managed carefully.

It’s suitable for:

• Marine, vehicle, and off-grid installations, and

• Grid-connected solar (ESS) applications — with anti-islanding protection and approvals for various countries.

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⚙️ Key Features

1. PowerControl & PowerAssist

• PowerControl prevents overload on a generator or grid connection. The MultiPlus-II manages available power intelligently — charging batteries only when spare current is available.

• PowerAssist goes a step further — it boosts grid or generator capacity when needed by drawing power from the battery. Once the load drops, it automatically recharges the battery again.

2. Solar Energy Integration

• Works in off-grid or grid-tied PV systems.

• Compatible with both solar charge controllers (DC-coupled) and grid-tie inverters (AC-coupled).

• Provides AC power even during grid failure, ensuring backup power from your solar and battery setup.

3. Two AC Outputs

• Main Output (AC-out-1): Seamless, no-break power supply — takes over instantly (<20 ms) during grid loss.

• Second Output (AC-out-2): Active only when grid/shore power is present — ideal for non-essential loads (e.g. geyser, pool pump).

4. Expandable System Design

• Up to 6 units can run in parallel for more power.
  → Example: Six 48/5000 units = 25 kW / 30 kVA output, 420 A charging.

• Can also be configured for three-phase setups (3 or more units).

• Larger models (8 kW, 10 kW, 15 kW) require an external AC transfer switch for parallel operation.

5. Configuration, Monitoring & Control

• Setup via VEConfigure software (using an MK3-USB interface).

• Multiple monitoring options: Cerbo GX, Venus GX, Color Control GX, Octo GX, CANvu GX, or via Bluetooth (Smart Dongle).

• Full system visibility through VRM (Victron Remote Management) — free online monitoring and remote configuration.

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🧭 Typical South African Use Case

In a home or business ESS setup, the MultiPlus-II:

• Keeps essential loads powered during load-shedding.

• Manages solar, grid, and battery power efficiently.

• Extends generator life by preventing overloads.

• Can be scaled as needs grow — ideal for hybrid solar backup systems.

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⚡ What the MultiPlus-II Does

The Victron MultiPlus-II is like the “brains” of a solar or backup power system.
It combines three jobs in one box:

1. An inverter (turns battery power into usable electricity),

2. A battery charger, and

3. A power manager that decides where your power should come from — grid, solar, generator, or battery.

It works for homes, businesses, caravans, boats, and off-grid sites.

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💪 Why It’s Clever

1. Stops your power source from overloading

You can tell the MultiPlus-II how much power your Eskom or generator connection can handle.
If your house starts pulling too much, the MultiPlus will:

• Reduce battery charging, or

• Use battery power to help out — so your main supply never trips or overloads.

This is called PowerAssist — the inverter helps your grid or generator during heavy use, like when the kettle and microwave run together.

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2. Keeps the lights on during load-shedding

When Eskom cuts out, the MultiPlus-II instantly switches to battery power (it happens so fast that computers or TVs don’t even blink).
When power comes back, it recharges the batteries again.

So, you always have electricity, even during load-shedding — that’s the ESS (Energy Storage System) side of it.

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3. Works perfectly with solar

It can take solar power from:

• Solar charge controllers (panels → batteries), or

• Grid-tied inverters (panels → house).

Even if the grid is off, your solar panels can still power your home — no wasted sunshine.

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4. Two outputs – smart load control

It has two power outputs:

• Main one: For everything that must stay on (lights, fridge, Wi-Fi, etc.)

• Second one: Only works when Eskom or generator is available — perfect for things you don’t want to run on battery (like geysers or pool pumps).

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5. You can grow the system

You can connect up to six MultiPlus units together if you need more power — or set up three-phase power for larger buildings or businesses.
It’s very flexible and future-proof.

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6. Easy to set up and monitor

You can adjust all the settings on a laptop or even monitor it remotely via the internet (using Victron’s free VRM portal).
If you have a Cerbo GX or similar, you can see exactly what your solar, battery, and grid are doing — live.

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🌞 In Short

The MultiPlus-II:

• Keeps power on during load-shedding,

• Manages power between solar, grid, and batteries,

• Protects your generator or Eskom connection, and

• Lets you expand easily as your power needs grow.

It’s a strong, reliable choice for South African hybrid solar systems — especially where load-shedding and high power costs are a daily headache.

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Victron MultiPlus-II – Smart Inverter & Charger

The MultiPlus-II is a clever all-in-one inverter and battery charger that keeps your power on during load-shedding. It manages energy from solar panels, the grid, and batteries automatically — making sure your home or business always has power.

It prevents generator or Eskom overloads, switches instantly during power cuts, and works perfectly with solar systems. You can even expand it later for more power or three-phase setups.

In short: reliable backup, smarter energy use, and total peace of mind.

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