Technical Guide · AU + US

Van Electrical Build Guide

Get the full electrical guide by email. This is the detailed version with numbered parts, cable sizing, batteries, solar, MPPT, DC-DC charger, inverter, shore power, fusing and commissioning checks.

55 numbered parts AU + US links 12V + 240V overview Sizing + fusing reference

Get the electrical guide

Drop your email below and I’ll send you access to the full technical guide library.

  • batteries, solar, MPPT and DC-DC charger setup
  • cable sizing and fuse sizing reference
  • shore power, inverter and charger layout notes
  • plain-English commissioning checks before first use

You’ll get access to the guide library after signup, including the electrical and plumbing technical guides.

What’s inside

  • the core 12V system layout from battery to fuse block
  • solar input, MPPT sizing and DC-DC charging
  • inverter, shore power and charger decision points
  • cable sizing, voltage drop and fusing basics
  • final checks before you power the system up

Who it’s for

This guide is for DIY van builders who want a real-world electrical plan, not a vague list of components.

  • builders planning an off-grid van electrical system
  • people choosing between AGM and lithium setups
  • AU and US readers who need parts references
  • anyone wanting fewer mistakes before crimping and wiring

Still in the planning stage?

The free main campervan build guide is still open online and gives you the full build overview before you dive into the technical details.

Read the free starter guide