Victron Energy MultiPlus 12/800/35-16 120V VE.Bus – Smart Power in a Compact Form

The Victron Energy MultiPlus 12/800/35-16 120V VE.Bus takes smart energy management to a new level. Compact yet powerful, it combines inverter, charger, and automatic transfer switch functions in one integrated unit — delivering continuous, clean, and reliable AC power for RVs, boats, off-grid cabins, and mobile power setups.

Like other models in the Victron Energy MultiPlus Series, this unit intelligently manages power flow, adapts to available energy sources, and safeguards your batteries through precise multi-stage charging technology.

Multifunctional Design with Intelligent Power Management

The MultiPlus 12/800/35-16 is more than just an inverter — it’s a complete power control system.

• True sine wave inverter: Delivers pure, stable AC power suitable for sensitive electronics.
  
• Adaptive battery charger: Automatically adjusts voltage and current to optimize battery health.
  
• High-speed transfer switch: Seamlessly switches between shore, generator, and inverter power without interruptions.
  

This integration ensures stable power and reduced system complexity — all in one compact Victron enclosure.

Parallel Operation and Three-Phase Capability

The MultiPlus 12/800/35-16 can scale up with your system’s needs:

• Parallel Operation: Up to six MultiPlus units can operate together for increased total power output.
  
• Three-Phase Configuration: Three units can be linked to deliver full three-phase capability — ideal for industrial or larger off-grid applications.
  

This flexibility makes the MultiPlus perfect for expanding energy systems that grow over time.

PowerControl – Managing Limited Shore or Generator Power

When power sources are limited — such as small generators or low-amperage shore connections — PowerControl prevents overloads.

By setting a maximum input current, the MultiPlus automatically monitors other AC loads and adjusts battery charging accordingly, ensuring that your generator or shore line is never overwhelmed.

PowerAssist – Boosting Power When You Need It Most

Victron’s PowerAssist takes energy management a step further. When your energy demand exceeds what your shore or generator can supply, the MultiPlus instantly supplements the shortage using power from your battery bank.

Once the load decreases, it uses available excess energy to recharge the batteries. This intelligent system guarantees continuous power without tripping breakers — perfect for appliances with high surge draws like air conditioners, microwaves, or power tools.

Four-Stage Adaptive Charger with Dual Bank Battery Support

The built-in four-stage adaptive charger ensures optimal performance for all battery chemistries, including Lithium, AGM, Gel, Sealed, and Flooded batteries.

• Stage 1: Bulk – Delivers maximum charge current.
  
• Stage 2: Absorption – Maintains steady voltage for complete charging.
  
• Stage 3: Float – Keeps batteries topped off safely over time.
  
• Stage 4: Storage – Reduces voltage for long-term battery health.
  

In addition, the MultiPlus 12/800/35-16 includes an independent trickle charge output for maintaining starter or auxiliary batteries, ensuring your engine or generator is always ready.

High Start-Up Power

The MultiPlus is engineered to handle high inrush currents required by demanding loads such as LED lighting systems, compressors, and small electric tools — all without voltage drops or inverter faults.

Search Mode – Energy Efficiency at Its Best

When no load is detected, Search Mode dramatically reduces power consumption by approximately 70%. The inverter automatically “wakes up” every two seconds to check for new loads, resuming full operation only when necessary. This feature is invaluable for off-grid systems where battery conservation matters.

Programmable Relay for Custom Applications

By default, the programmable relay is set as an alarm relay — triggered in case of low battery voltage, overheating, or other critical conditions.
However, advanced users can reconfigure this relay via VE.Configure software for other tasks, such as auto-starting a generator or controlling external systems.

On-Site and Remote Configuration Options

Once installed, the MultiPlus 12/800/35-16 is ready to operate with default settings, but deeper customization is simple:

• Use DIP switches for quick local adjustments (charge voltage, search mode, remote control).
  
• For in-depth programming, connect via VictronConnect app or MK3-USB Interface for VE-Configure access.
  

For full remote monitoring and control, pair your inverter/charger with a Victron Cerbo GX MK2 System Monitor.

Through the Victron Remote Management (VRM) Portal, you can track energy flow, monitor battery performance, and adjust settings from anywhere — perfect for mobile or off-grid applications.

Why Choose the Victron Energy MultiPlus 12/800/35-16

• Compact yet powerful: Perfect balance for medium-size RVs, boats, and cabins.
  
• Intelligent PowerAssist: Smoothly bridges gaps between generator, shore, and battery power.
  
• Pro-level configurability: Works seamlessly with Victron’s monitoring ecosystem.
  
• Durable, scalable design: Built for both entry-level and professional-grade systems.
  

Explore Related Victron Energy Products

• Victron Energy MultiPlus 12/500/20-16 VE.Bus Compact Power & Smart Control
  
• Victron Energy MultiPlus 12/2000/80-50 VE.Bus UL 458
  
• Victron Energy MultiPlus 12/3000/120-50 UL 1741/458
  
• Victron Cerbo GX MK2 System Monitor
  

The Bottom Line

The Victron Energy MultiPlus 12/800/35-16 120V VE.Bus is a compact yet intelligent inverter/charger designed to deliver seamless power control and battery management in one durable unit.

With PowerAssist, adaptive charging, and remote configuration, it’s built for users who want efficiency, reliability, and smart control in their RV, boat, or off-grid system.

Whether used standalone or paired with a Cerbo GX for remote management, the MultiPlus 12/800/35-16 embodies Victron’s commitment to smarter, more adaptable energy systems.

Shop the full Victron Energy MultiPlus lineup today at 12VoltPower.com and power your adventures with precision and confidence.