Custom camper electrical system for Andi and Jesse’s Mercedes Sprinter
Deel
Andi and Jesse are converting a 2013 Mercedes Sprinter into a camper. They are building the interior themselves, including the wooden cabinet around the wheel arch. Faraday Energy built a custom Explorer electrical panel into it. They then handled the installation and connection in their camper themselves, with our guidance.
An electrical panel in their own cabinet
The self-built cabinet formed the starting point for the layout. In addition to space for the electrical system, Andi and Jesse also wanted to retain storage space. We tailored the placement of the components and the cabling accordingly.
This made the system part of their own camper interior: a pre-assembled electrical panel in the cabinet they had designed and supplied themselves.

Detail of the layout and protection, built by Faraday Energy in their own cabinet.
A large battery, without an unnecessarily large inverter
Andi and Jesse wanted enough energy storage to be able to stay off-grid for longer than a few days. That is why we chose a large 320 Ah lithium leisure battery.
The inverter was a different consideration. Without shore power, they do not expect to use heavy 230V appliances, such as a coffee maker, kettle, or oven. A large inverter was therefore not necessary for their use. That is why we combined the large battery with a smaller Victron MultiPlus 12/800.
This combination makes it a custom Explorer version: plenty of energy reserve, with an inverter that suits their equipment. How long they can actually stay off-grid depends on their consumption and recharging.
The solar panels were also tailored to their camper. Within the available roof frame, three black panels of 100 Wp each fit. In addition, the battery can be charged while driving and via shore power.

The large 320Ah lithium battery and the smaller MultiPlus 12/800, in their place in the Sprinter during the camper build.
Built in themselves, with our guidance
Faraday Energy built the electrical panel and prepared the connections. When picking it up, we went through the connection points and required cables together. Andi and Jesse then installed the panel in the Sprinter themselves and connected the installation.
The result is an electrical system that suits their own camper build and their way of traveling.
This project was custom-built. The layout and components may differ from the current Explorer version.
Also an electrical system that suits your camper? View the Explorer system as a starting point.