Independent, practical guides to sizing and building your van's electrical system. We help vanlife builders understand solar, batteries and inverters, choose the right gear, and build a system they can trust.
Most van builds are over- or under-sized. Before you buy anything, work out how much power your lifestyle actually needs, then let that number drive every choice.
Our step-by-step pillar guide: calculate your daily watt-hours, then size your battery, solar, inverter and charger to match.
Read the guide →Match your solar array to your battery and your climate, with the real-world numbers.
Read →Side-by-side breakdowns of the big names, built around the specs that actually matter.
Browse →Two more essentials every van builder should understand before choosing equipment.
Why lithium is now the standard for vanlife, and when lead-acid might still make sense.
Read →What an alternator charger does, and why it protects both batteries.
Read →Start with the sizing guide. It is the one page that saves you the most money and confusion across your whole build.
Start the sizing guide