Inverter Charger Victron Energy MultiPlus-II PMP482506000 5000W 48V AC inverter with charger and UPS function

The Victron Energy MultiPlus-II PMP482506000 is a 5000W, 48V inverter charger that integrates a pure sine wave inverter, a multi-stage battery charger and UPS functionality in a single unit. Designed for reliable backup and off-grid power, the MultiPlus-II provides uninterrupted power transfer to connected loads and supports hybrid energy systems. The unit is compatible with battery-based systems and can be configured for parallel operation or three-phase installations to scale capacity for residential, marine and mobile applications.

Advantages

The MultiPlus-II combines inverter, charger and automatic transfer switch functionality to provide seamless switching between mains and battery power without interruption to sensitive electronics. Multi-stage charging with configurable parameters ensures efficient battery conditioning and longevity. Support for parallel and three-phase configurations allows system scaling, while built-in monitoring and communication features make integration with solar inverters, battery management and remote supervision straightforward.

Suitable for

• Home backup power systems and small off-grid homes
• Marine installations including yachts and workboats
• Recreational vehicles (RVs) and mobile power setups
• Hybrid solar systems combined with charge controllers and inverters

Key specifications

• Continuous inverter output power: 5000 W
• DC input voltage: 48 V nominal
• Pure sine wave AC output suitable for sensitive electronics
• Integrated multi-stage battery charger with configurable charge profiles
• Uninterruptible Power Supply (UPS) functionality with automatic transfer
• Parallel operation and three-phase capability for increased capacity
• Communication interfaces for monitoring and system integration

How to use

Install the inverter charger according to local electrical codes and the manufacturer’s installation guidelines, ensuring proper DC cable sizing and battery connection to the 48 V battery bank. Connect AC input from the shore/grid and AC output to the protected distribution circuits or essential loads. Configure charging parameters, transfer settings and parallel or three-phase operation using the device’s configuration tools or compatible monitoring software. Perform initial tests with loads to confirm automatic transfer and charging behaviour before placing the system into routine service.

Usage recommendations

Use appropriately sized battery capacity and cable conductors to minimize voltage drop and ensure reliable operation. Match charge profiles to the battery chemistry in use, perform periodic firmware and settings checks, and integrate the unit with monitoring systems to track performance and diagnose issues early.