“The lithium upgrade made a huge difference to my golf cart. Longer runtime, quicker charging and noticeably better performance.”
Victron Energy
Victron Energy MultiPlus-II 48V 5000VA 4000W 120V 50/60Hz Pure Sine Wave Inverter Charger, 70A Battery Charger, ESS Compatible, PMP482505300
Victron Energy MultiPlus-II 48V 5000VA 4000W 120V 50/60Hz Pure Sine Wave Inverter Charger, 70A Battery Charger, ESS Compatible, PMP482505300
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PRODUCT DESCRIPTION
The Victron Energy MultiPlus-II 48V 5000VA 4000W 120V 50/60Hz Inverter Charger (Model 48/5000/70-95 120V, MPN PMP482505300) combines a pure sine wave inverter, a 70A adaptive battery charger, and an integrated high-speed transfer switch in one reliable energy management unit. Built for off-grid, marine, RV, solar storage, and backup power systems, this 48 volt inverter charger delivers dependable 120VAC power with 50/60Hz frequency support while efficiently charging your battery bank.
48V 5000VA / 4000W Pure Sine Wave Inverter Charger
The MultiPlus-II provides 5000VA / 4000W of continuous pure sine wave power and a built-in 70A adaptive charger. With 120VAC output and 50/60Hz frequency support, it suits a wide range of residential, commercial, marine, and mobile power systems.
PowerAssist and PowerControl for Grid, Generator, and Shore Power
PowerControl prevents overloads by intelligently managing available AC input from the grid, generator, or shore connection. During high demand, PowerAssist supplements limited AC power with stored battery energy to support peak loads.
High-Speed UPS Backup Power
During outages or shore power interruptions, the MultiPlus-II switches to inverter power in less than 20 milliseconds, keeping sensitive electronics, appliances, and critical equipment running without disruption.
ESS and Dynamic ESS Ready
The MultiPlus-II supports advanced Energy Storage System applications with smart grid, solar, and battery management. External current transformer support enables self-consumption optimization, and built-in anti-islanding protection supports grid-connected installations.
Remote Monitoring and Scalable Design
Paired with a Victron GX device such as the Cerbo GX, the MultiPlus-II supports remote monitoring, system configuration, generator control, and real-time performance tracking through the Victron VRM platform. Parallel and three-phase operation let your system expand as power needs grow.
Key Features
- 48V DC pure sine wave inverter charger
- 5000VA / 4000W continuous output
- 70A adaptive battery charger
- 120VAC output with 50/60Hz frequency support
- Integrated high-speed transfer switch
- UPS function with transfer under 20 ms
- PowerAssist and PowerControl technology
- ESS and Dynamic ESS compatible
- External current transformer support
- Built-in anti-islanding protection
- Remote monitoring with Cerbo GX and VRM
- Supports parallel and three-phase expansion
Applications
- Off-grid homes and cabins
- Solar energy storage systems
- Boats and marine electrical systems
- RVs and motorhomes
- Overland vehicles
- Emergency backup power
- Commercial mobile and industrial power systems
Specifications
| Brand | Victron Energy |
|---|---|
| Product Type | MultiPlus-II Inverter Charger |
| Model | MultiPlus-II 48/5000/70-95 120V |
| MPN | PMP482505300 |
| System Voltage | 48V DC |
| Continuous Output Power | 5000VA / 4000W |
| Inverter Type | Pure Sine Wave |
| AC Output Voltage | 120V |
| Frequency | 50/60Hz |
| Battery Charger Output | 70A |
| Transfer Switch | Integrated high-speed |
| Condition | New |
What's Included
- Victron Energy MultiPlus-II 48V 5000VA 70A Inverter Charger
- Product documentation
The Victron Energy MultiPlus-II 48V 5000VA 4000W 120V Inverter Charger delivers powerful pure sine wave output, 70A adaptive charging, high-speed UPS backup, and ESS-ready energy management for off-grid, marine, RV, and backup power systems.

Higher Performance
More power, longer range
Longer Lifespan
Up to 10x longer than lead-acid
Safe & Reliable
Built-in BMS protection
Easy Installation
Plug & play design
Trusted by Golf Cart Owners
See why customers choose us for dependable lithium power, premium brands and knowledgeable support.
“I was unsure which battery setup would work with my cart, but the support was excellent and helped me choose the right option.”
“Shipping was quick and everything arrived well packed. Installation was straightforward and the battery has been performing great.”
“Much lighter than my old lead-acid setup and I no longer have to worry about constant maintenance. Very happy with the upgrade.”
“Great selection of quality brands and the website made it easy to compare the options for my 48V golf cart.”
“The new battery gives us plenty of range for a full day around the community. Power delivery stays strong even near the end of the charge.”
“Helpful service, clear product information and a smooth ordering process. I would definitely shop here again for golf cart upgrades.”