Dual Battery Systems
Power that doesn’t flatten your starter.
A properly built dual battery setup is the difference between a great trip and a long walk for help. We install dual battery systems that keep your fridge running, your lights on and your starter battery untouched — using only proven brands like Redarc, Projecta and Enerdrive.
Scope of Work
- AGM, lithium (LiFePO4) and dual-purpose battery installs
- DC-DC chargers with solar input (Redarc BCDC, Projecta IDC)
- Battery monitors and voltage displays
- Anderson plugs, MEGA fuses and proper cabling
- Tray, drawer and under-bonnet battery mounting
- Trailer charging via Anderson or 7-pin
The Process
System sizing
We size the battery and charger to your loads — fridge, lights, inverter, recovery — so it actually lasts the night.
Correct cable
Twin-core tinned cable, MEGA fuses at the source, no undersized garbage.
Clean mount
Battery boxes, trays and brackets that won’t move on a corrugated track.
Tested under load
Voltage and amperage tested at each stage — we don’t hand it back until the numbers are right.
Gear We Trust
We fit and stand behind proven brands — Australian-made where it counts, premium European where you need it. No no-name eBay garbage going into your build.
DC-DC, brake controllers, BMS
Australian-made charging and trailer-brake gear. Our go-to for serious touring builds.
DC-DC chargers, batteries
Reliable IDC chargers and battery management — great mid-tier option.
Lithium batteries, inverters
Premium lithium and inverter combos for full off-grid setups.
MPPT, inverters, monitors
European-grade power kit when full Bluetooth monitoring matters.
Driving lights, light bars
Australian-made lighting that survives corrugations and decades of use.
Lighting, wiring, accessories
Bread-and-butter wiring, lighting and connectors — proven gear.
Lighting, electrical accessories
Quality OEM-grade lights, plugs and switches.
UHF radios, antennas
Australia’s default UHF — properly mounted and tuned, every time.
UHF radios
Solid mid-tier UHF gear, especially for car/truck combos.
Heavy-duty connectors
The connector standard for trailer charging and 12V power transfer.
Caravan power management
OEM in many Aussie caravans — we service, replace and upgrade.
Head units, audio
Aftermarket head units and audio with Apple CarPlay / Android Auto.
See Our Work
FAQ
AGM or lithium — which should I get?
Lithium gives you more usable capacity, lighter weight and faster charging — but costs more upfront. AGM is still excellent value if weight and space aren’t critical. We help you choose based on how you actually use the vehicle.
Do I need a DC-DC charger?
On any modern vehicle with a smart alternator — yes. Without one, your auxiliary battery will never reach full charge. We use Redarc BCDC and Projecta IDC chargers.
Can you fit a solar input too?
Yes — most DC-DC chargers we install include MPPT solar input as standard. Add a panel any time.
You May Also Need
Ready to book dual battery systems?
Serving Canberra to Eurobodalla — Mon–Fri 9AM–8PM