Easy

Campervan Leisure Battery Wiring — 12V System Guide

A complete guide to wiring a 12V leisure battery system in a campervan — from choosing the right battery and B2B charger to correctly sizing cables, fuses, and solar input.

4–8 hoursEasy

What This Is

advanced

Tools & Parts Required

  • Multimeter
  • Crimping tool and terminals
  • Cable stripper
  • Drill and bits
  • Fuse holders
  • Marine-grade 12V cable (various gauges)
  • Bus bars or distribution board
  • Heat shrink tubing
  • Cable ties and conduit

Step-by-Step Instructions

Safety Warnings

  • Disconnect the battery before working on any wiring
  • Never work on live circuits
  • All gas appliances must be on a separate, dedicated circuit with appropriate fusing
  • Install a carbon monoxide alarm and a smoke detector in the living area

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