The Best Dual Battery Systems for Touring Australia

When you’re travelling across Australia’s vast and rugged landscapes, staying powered up is non-negotiable. From keeping your fridge running in the Kimberley heat to charging your camera gear in the Daintree, a reliable dual battery system can make all the difference between a memorable adventure and a major hassle.

At All 12 Volt, we’ve spent years testing and recommending the best gear for real Aussie conditions. In this guide, we’ll break down the top dual battery systems for touring Australia, explain how they work, and help you choose the right setup for your caravan, camper trailer, or 4WD.

What is a Dual Battery System?

A dual battery system uses two separate batteries in your vehicle or rig:

• Starter Battery: Powers your engine

• Auxiliary Battery: Powers 12V accessories like fridges, lights, pumps, and inverters

The benefit? You can run all your camping gear without draining your starter battery, ensuring you’re not left stranded.

Why You Need One for Touring

Whether you’re doing the Gibb River Road, crossing the Simpson Desert, or simply camping in a remote beach cove, a dual battery system gives you:

• Energy independence

• Longer off-grid stays

• Peace of mind

Paired with solar panels and a battery monitor, it’s the ultimate off-grid solution.

AGM vs Lithium: Which Battery is Better?

Both have their place, but here’s a quick comparison:

Lithium is ideal for serious tourers; AGM is a great starting point for weekend adventurers.

Top Dual Battery Setup Components

To get the best performance, your system should include:

1. Deep-Cycle Battery
   Choose from ZENOT AGM or Lithium depending on your needs and budget.

2. DC-DC Charger or Isolator
   Ensures your auxiliary battery charges safely while you drive.

3. Battery Box or Mounting System
   Protects your battery and gives you easy access to ports, displays, and outputs.

4. Solar Panels + MPPT Controller
   Harness free energy from the sun to keep your system topped up, even when stationary.

5. Battery Monitor
   Tracks voltage, amps, and usage in real-time—essential for managing power efficiently.

Our Favourite Dual Battery Systems

Here are three tried-and-tested options we recommend:

✅ ZENOT 100Ah AGM Starter Kit

Perfect for: Weekend campers or new tourers
Includes: AGM battery, isolator, pre-wired battery box
Pros: Affordable, durable, plug-and-play

✅ ZENOT 200Ah Lithium Touring Setup

Perfect for: Long-term off-grid living
Includes: Lightweight lithium battery, DC-DC charger, Bluetooth monitor
Pros: Fast charging, high capacity, long lifespan

✅ 4WD Compact Under-Bonnet Setup

Perfect for: Short 4WD trips and fridge setups
Includes: Heat-resistant AGM, isolator, simple wiring
Pros: Space-saving, cost-effective, great for fridges and lights

Installation Tips

• Use correct cable sizing to avoid voltage drop

• Mount the battery securely and ventilate the area

• Fuse all connections for safety

• Plan ahead for expansion—add more sockets, solar inputs, or a second aux battery later

Need help with installation? The All 12 Volt team is here to guide you every step of the way.

Go Further, Stay Longer

The right dual battery system lets you enjoy true freedom on the road. Whether you’re cruising the coast or crossing the Nullarbor, our setups are built to handle the extremes of the Aussie outdoors—without the premium price tag.

Explore dual battery systems now at All12Volt.com.au

Power your adventure. The road is calling.