Dual Battery Systems for 4x4 & Camping
Reliable power solutions for your off-road adventures. Expert installation of dual battery systems in Sydney to run fridges, lights, and accessories without draining your starter battery.
Why Install a Dual Battery System?
Never get stranded with a flat starter battery again. Power your essential camping and off-road gear reliably.
Power Accessories
Run fridges, lights, chargers, and more off-grid.
Protect Starter Battery
Ensures you can always start your vehicle.
Extend Trip Duration
Stay powered up for longer adventures.
Reliable Off-Grid Power
Consistent power supply wherever you roam.
Peace of Mind
Travel with confidence knowing your power needs are met.
Our Dual Battery Solutions
From complete installations to quality components.
Complete System Installation
Full supply and fitment of batteries, isolators, wiring, and outlets.
Enquire NowBattery & Component Supply
Source high-quality deep cycle batteries, chargers, and isolators.
Enquire NowKey System Components
Auxiliary Battery
Deep cycle (AGM or Lithium) designed for sustained power draw.
Isolator / DC-DC Charger
Manages charging between starter and auxiliary batteries.
Wiring & Fusing
Heavy-duty, safe wiring with appropriate circuit protection.
Outlets & Monitoring
Convenient power access (USB, 12V sockets) and battery monitors.
Our Installation Process
Consultation
Discuss your vehicle, travel style, and power needs.
System Design
We recommend components and design the layout.
Professional Installation
Safe and tidy fitment by our expert technicians.
Testing & Handover
We ensure everything works correctly and explain the system.
Dual Battery System FAQs
What type of auxiliary battery is best: AGM or Lithium?
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Both have pros and cons. Lithium (LiFePO4) is lighter, offers more usable capacity, and lasts longer but is more expensive upfront. AGM is a reliable, cost-effective option. We can help you choose based on your budget and needs.
Do I need a VSR/Isolator or a DC-DC charger?
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For modern vehicles with smart alternators, a DC-DC charger is generally recommended for optimal charging of the auxiliary battery. Older vehicles might use a Voltage Sensitive Relay (VSR). We assess your vehicle to recommend the best solution.
Can I install a dual battery system myself?
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While possible for experienced individuals, professional installation ensures correct wiring, fusing, component placement, and safety, especially with complex vehicle electronics. Incorrect installation can be dangerous and damage your vehicle.
How long does installation typically take?
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A standard dual battery system installation usually takes between 4 to 8 hours, depending on the vehicle complexity and system components.
How much does a dual battery system cost?
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Costs vary significantly based on battery type (AGM vs Lithium), charger type, wiring complexity, and labour. Contact us for a detailed quote tailored to your vehicle and requirements.
Ready to Power Your Next Adventure?
Discuss your 4x4, caravan, or camping power needs with our dual battery system experts in Sydney today.