
DC to DC Charger Wiring: The Complete Guide
Our DC-to-DC wiring diagrams will help you install and maintain a reliable electric system for your campervan, including single and dual battery setups.

Alan is co-founder of Vunked and leads electrical system design and real-world campervan builds. He holds an MSc in Mechanical Engineering from University of Glasgow and previously worked for four years as a Software Engineer at Sky in Livingston.
At Sky, Alan worked across both frontend and backend Java systems, helping design customer onboarding and support platforms used at scale across the UK.
Since co-founding Vunked in 2022, Alan has specialised in off-grid power system design and campervan electrical layouts. He has personally converted two vans in Glasgow, designing and installing their complete electrical systems — experience that underpins Vunked’s wiring diagrams, component recommendations, and installation guides.
Building campervans seemed like a good way to spend my days during lockdown. Three years later, it’s now a full time job. When not building your campervan electrical systems, you’ll find me in my van up a Munro somewhere or wild swimming in a remote Scottish loch.
Alan bridges mechanical engineering, software, and hands-on electrical work to ensure Vunked systems are both technically sound and DIY-friendly.
MSc Mechanical Engineering, University of Glasgow
Big boy van ready for weeks off-grid in Europe hiking.





Our DC-to-DC wiring diagrams will help you install and maintain a reliable electric system for your campervan, including single and dual battery setups.
Should I wire campervan batteries in series or parallel? Batteries in series increase the voltage. Batteries in parallel increase the current

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All Vunked system designs adhere to BS 7671 (IET Wiring Regulations) and relevant EU low-voltage directives.

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