Juuls groene Volkswagen Transporter zelfbouwcamper, met een op maat gebouwd elektrasysteem van Faraday Energy.

Custom camper electrical system for Juul’s Volkswagen Transporter

November 2, 2026

Juul converted his Volkswagen Transporter from a commercial van into a camper. The electrical system mainly had to provide what he needed on the road: power the fridge, supply lighting, and charge devices. A simple installation, tailored to his needs and the limited space in the van.

Faraday Energy built and wired a custom Compact electrical panel for this. Juul continued working on his camper himself, with assistance connecting and setting up the system.

The layout follows the available space

In this project, the installation space also determined the layout. Approximately 63 cm in width and 45 cm in height were available for the panel. The battery did not need to fit there as well: a 150Ah Ultimatron lithium battery was chosen in a version that fits under the seat.

The Victron MultiPlus was placed on one of the panel's side surfaces. This allowed the components to be distributed across multiple surfaces, instead of placing everything on one wide backplate. The choice of a separate battery under the seat also freed up space on the panel for the remaining components and cabling.

Compact electrical panel in Juul's Volkswagen Transporter during installation, with the battery under the seat and a multimeter on the floor. — The electrical panel during installation in Juul's Transporter. The battery is under the seat; the cable ducts are still open here.

Power for the daily essentials

The system combines the 150Ah lithium battery with a Victron MultiPlus 12/500/20, an Orion-Tr Smart 12/12-30 for charging while driving, and a SmartSolar MPPT 75/15 for solar power. The MultiPlus handles charging via shore power and provides 230V from the battery.

The installation is therefore aimed at Juul's daily basic consumption. A modest inverter was chosen, fitting his wish to keep the system simple. How long you can stay without external power still depends on consumption and how much you recharge on the road.

Prepared, configured and tested

For installation, the components are mounted and connected to the panel. Configuration and testing are also part of that preparation. In the photo below, the laptop is placed in front of the panel while configuring the MultiPlus.

Laptop next to Juul's electrical panel while configuring and testing the Victron MultiPlus. — Configuring and testing the MultiPlus on the workbench before the system takes its place in the camper.

Continuing the build yourself, with support

Faraday Energy also helped with the electrical work in the van. After that, Juul continued himself with the connections for the fridge, lighting, solar panel, and more. We could go over questions about the connections and settings together.

After his first weekend away, Juul let us know that everything had gone well. The fridge stayed cold and he was happy with how the electrical system worked.