12V & Dual Battery Setup Guide – Instant PDF Download (Free With Any Purchase)

Free with any purchase. Add this guide to your cart with any other product and it drops to $0 at checkout automatically. On its own it's $4.95.

Plan, size and fit a reliable second-battery system for your 4WD, ute or camper, without the expensive mistakes. Written by Bryan Andrews, who has spent most of his career in auto electrical and mechanical fitment.

What's inside (14 pages)

• How a dual battery system works, in plain English
• Working out how much power you actually use, with typical figures for fridges, lights, fans and more
• AGM vs lithium (LiFePO4): usable capacity, weight, charging and mounting
• DC-DC charger vs isolator, and how to pick 20A, 30A or 40A
• Cable size guide by current and run length, plus how to size and place fuses
• Planning the install step by step, and when to call a licensed auto electrician
• Adding solar: how many watts, panel types and regulators
• Lithium: profiles, BMS, cold charging and storage
• 15 mistakes we see all the time
• Testing and maintenance checklists, with typical resting voltages
• Fill-in power budget worksheet and parts list

How you get it

This is a digital product. Nothing is posted. After checkout you'll get a download link straight away on the order page and by email. The file is a printable A4 PDF.

Good to know

• This guide explains how systems work and how to plan one. It isn't a substitute for a licensed auto electrician, and you should always follow the instructions that come with your own equipment.
• Still not sure what suits your vehicle? Email sales@dirttodustadventureaccessories.com.au with your vehicle and what you want to run, and Bryan will help you work it out, free of charge.

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. If your download doesn't work, email us and we'll sort it out.