Victron MultiPlus-II 15kVA 48V Inverter Charger is a high-performance, all-in-one power solution designed for large-scale, demanding applications such as off-grid, solar, RV, marine, and backup systems. This 48V inverter/charger integrates a true sine wave inverter, a 120A adaptive battery charger, and an ultra-fast AC transfer switch, ensuring reliable, high-quality AC power for sensitive equipment. The MultiPlus-II 15kVA 48V comes equipped with PowerAssist and PowerControl technologies that intelligently manage power usage, prevent overloads, and optimize energy efficiency. The added GX functionality provides remote monitoring and control via the Victron VRM portal, allowing easy access to system data and diagnostics. Compatible with lithium, AGM, gel, and flooded batteries, the MultiPlus-II 15kVA 48V is also scalable with parallel and three-phase operation, making it perfect for large power systems.
Key Features
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True Sine Wave Inverter: Delivers stable, high-quality AC power, ideal for sensitive electronics
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120A Adaptive Battery Charger: Advanced four-stage charging ensures optimized battery performance and longevity
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Ultra-fast AC Transfer (<20 ms): Provides seamless transition between grid, generator, or battery power sources
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PowerAssist & PowerControl: Intelligent energy management prevents overloads and optimizes power usage
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GX Functionality: Remote monitoring and control via the Victron VRM portal for easy system diagnostics and management
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Dual-Bank Charging: Supports simultaneous charging of two battery banks for added flexibility
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Battery Compatibility: Works with lithium, AGM, gel, and flooded batteries for versatile power solutions
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Scalable System: Supports parallel and three-phase operation, allowing for expanded setups
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Compact & Durable Design: Built for long-term, reliable performance in demanding environments
Technical Data Table
| Specification | Value / Range |
|---|---|
| Nominal output power | 15000 VA |
| Continuous output power | ~12000 W |
| Input (DC) voltage | 48 V |
| Maximum charge current | 120 A |
| AC input voltage range | 187 – 265 V AC |
| AC input frequency | 45 – 65 Hz |
| Efficiency (inverter) | ~92 – 95 % |
| Transfer switch time | < 20 ms |
| Supported battery types | Lithium, AGM, Gel, Flooded |
| Peak power capability | ~30000 W (short duration) |
| Operating temperature | –20 °C to +50 °C |
| Remote interface | VE.Bus / VRM |
| Scalability | Parallel & 3-phase capable |




























