POWER THAT GOES WHERE YOU GO

Custom Dual Battery Systems

Keep your fridge, lights, chargers and touring accessories powered without draining your vehicle's starting battery.
Designed for your vehicle
Premium charging components
Professionally fitted and tested
Find My Power Setup View Fitted Packages

Custom System Design

Professional Installation

REDARC, Victron and Enerdrive

AGM and Lithium Options

Workshop Testing and Handover
POWER YOUR ACCESSORIES SAFELY

Run Your Gear Without Risking a Flat Starter Battery

A professionally installed dual battery system gives your touring accessories their own dedicated power supply. Your fridge, camp lights, USB outlets and other equipment can run from the auxiliary battery while your vehicle's starting battery remains protected. A DC-DC charger manages the charge going into the auxiliary battery while you drive. Depending on the selected system, solar can also be integrated to keep the battery charging while you are parked at camp.
  • Portable and upright fridges
  • Camp and canopy lighting
  • USB and 12V outlets
  • Compressors and water pumps
  • Inverters and small appliances
  • Solar charging
START YOUR BUILD
OZ OFF ROAD FITTED PACKAGES

Start With a Proven Dual Battery Setup

Choose an under-bonnet installation or a tub and boot-mounted setup. Both packages can be tailored to suit your vehicle, accessories and future power needs.
POPULAR FOR 4WDS

Weekender Dual Battery Kit

Under Bonnet
From $2,399 Fitted
Designed for compatible vehicles with suitable under-bonnet space. A compact and practical system for powering a fridge, lights and everyday touring accessories.
Included
  • Vehicle-specific auxiliary battery tray
  • POWER 85Ah AGM auxiliary battery
  • REDARC BCDC1225 DC-DC charger
  • Charger mounting bracket
  • Fuse-holder bracket
  • Surface-mount housing
  • Battery cabling
  • DC voltmeter
  • Fuses, terminals and installation consumables
  • Professional workshop installation
  • System testing and customer handover
Book Under-Bonnet Package
Pricing is indicative. Final pricing depends on vehicle compatibility, component placement, wiring requirements and cable runs.
BEST FOR CANOPIES & WAGONS

Weekender Dual Battery Kit

Tub or Boot Installation
From $2,299 Fitted
A neatly mounted auxiliary power system for ute tubs, canopies, wagons and rear cargo areas, with convenient access for your touring accessories.
Included
  • Auxiliary battery mounting tray
  • POWER 85Ah AGM auxiliary battery
  • REDARC BCDC1225 DC-DC charger
  • Charger mounting bracket
  • Fuse-holder bracket
  • Surface-mount housing
  • Battery cabling
  • DC voltmeter
  • Fuses, terminals and installation consumables
  • Tidy panel-mounted installation
  • Anderson service ports where included in the quoted design
  • System testing and customer handover
Book Tub or Boot Package
Pricing is indicative. Final pricing depends on vehicle, mounting location, panel requirements and cable runs.

Which Dual Battery System Suits You?

Choose a starting point based on how you travel and what you need to power. Our workshop will confirm the final battery size, charger capacity and installation location.

Weekender

For customers running a fridge, camp lights and phone charging on short trips.

Suggested setup:

  • 85Ah AGM battery
  • 25A DC-DC charger
  • Basic voltmeter
  • Optional portable solar input
START YOUR BUILD

Tourer

For regular camping, longer stops and multiple 12V accessories.

Suggested setup:

  • Larger AGM or lithium battery
  • 40A to 50A DC-DC charging
  • Solar integration
  • Battery monitoring
  • Multiple accessory outlets
START YOUR BUILD

Ultimate Off-Grid

For canopies, extended remote travel and higher power demands.

Suggested setup:

  • High-capacity lithium battery bank
  • Higher-output DC-DC charging
  • Fixed and portable solar inputs
  • Inverter and 240V outlets
  • Full battery monitoring and power management
START YOUR BUILD

A Power System Designed Around Your Vehicle

Under Bonnet

Under Bonnet

A compact solution for compatible vehicles with appropriate battery space and suitable heat-rated equipment.

Ute Tub

Ute Tub

A practical rear-mounted system with easy access to fridges, lights and camping equipment.

Canopy

Canopy

A clean integrated power panel with charging, monitoring, outlets and room for future upgrades.

Wagon or Boot

Wagon or Boot

A discreet installation designed around the rear cargo area and how the vehicle is used.

Check What Fits My Vehicle

Smart Charging While You Drive

The DC-DC charger is the heart of a modern dual battery system. We select the charger based on your alternator, battery type, installation environment, solar requirements and expected power usage.

REDARC BCDC

Rugged vehicle-based DC-DC charging with selected models supporting combined alternator and solar charging.

Victron Orion XS

Compact, programmable DC-DC charging with app-based setup and system monitoring options.

Enerdrive DC2DC

Multi-stage charging with alternator and integrated MPPT solar input options for touring and canopy systems.

HULK 4x4 Components

Battery trays, cabling accessories and supporting hardware for practical 4WD installations.

Ask Which Charger I Need

AGM or Lithium: Which Battery Is Right for You?

The best battery depends on your available space, budget, accessory load, trip length and how often you use the system.

AGM Battery

Best suited to:

  • Entry-level dual battery systems
  • Weekend trips
  • Moderate accessory use
  • Customers prioritising lower upfront cost

Key considerations:

  • Heavier for the usable capacity
  • Less usable energy than an equivalent lithium system
  • Proven and cost-effective

Lithium Battery

Best suited to:

  • Frequent touring
  • Longer stays without driving
  • High accessory use
  • Canopy and off-grid systems

Key considerations:

  • Lighter for the available capacity
  • Greater usable capacity
  • Faster charging when paired with suitable equipment
  • Higher upfront investment

Our workshop will confirm that the battery, charger, installation location and charging profile are compatible before fitment.

Help Me Choose
Keep charging at camp

Add Solar to Stay Off-Grid Longer

Solar can help replenish your auxiliary battery while the vehicle is parked, reducing the need to start the engine just to charge your power system.

Depending on your chosen charger and system design, we can integrate:

  • Fixed roof-mounted solar
  • Portable folding solar panels
  • Anderson solar inputs
  • Solar regulators or integrated MPPT charging
  • Battery monitoring
Pair it with the DUCK4X4 200W Foldable Solar Panel
A portable solar option that can be positioned in the sun while your vehicle remains parked in the shade.
start your build View 200W Solar Panel
INSTALLED PROPERLY

More Than a Battery and a Few Wires

A reliable dual battery system depends on correct cable sizing, circuit protection, secure mounting, ventilation, compatible charging equipment and careful routing through the vehicle.

Our workshop handles the system as one complete installation, including:

  • Vehicle and accessory assessment
  • Battery and charger selection
  • Secure component mounting
  • Correct cable sizing
  • Fuses and circuit protection
  • Protected cable routing
  • Charging and voltage testing
  • Operating handover
Book A Workshop Assessment

From Power Needs to Finished Installation

1

Tell Us What You Run

We discuss your fridge, lighting, outlets, travel habits and future upgrades.

2

Assess Your Vehicle

We check available mounting locations, alternator requirements and cable routes.

3

Design and Install

We select compatible equipment and complete the installation in our workshop.

4

Test and Hand Over

We test charging performance and show you how to use and monitor the system.
POWER YOUR NEXT ADVENTURE

Build a Dual Battery System That Works for You

From a straightforward Weekender package to a complete lithium and solar power system, our workshop will design and install a setup around your vehicle and the way you travel.
Request A Quote
Custom designed • Professionally installed • Premium trusted brands