Mobile 12V & Dual Battery Specialists in Melbourne

Reliable, professionally designed 12V electrical systems for 4WDs, Tradie utes, caravans, campers and touring setups — installed at your home, workplace, or our Home workshop.

We help you take the guesswork out of power systems so you can run fridges, inverters, solar, lighting and accessories with confidence wherever you go.

The image shows a vehicle's open compartment with electronic equipment, including a Kings 3000W pure sine wave inverter, a Kings 40A fuse box, wiring, and switches, installed on a soundproofed surface.
Open compartment containing a blue Kings 40A fuse box, a Kings 3000W pure sine wave inverter, a circuit breaker panel, and various electrical connections and switches.
Electrical control panel with various switches, circuit breakers, a voltmeter, and a large inverter labeled 'KING'S 3000W PURE SINE WAVE INVERTER' inside a vehicle or equipment enclosure.

Built Right the First Time.

At The 12V Lab, we specialize in complete 12V system design and installation with a strong focus on Safety, Reliability and Real-World Performance.

Whether you’re setting up a touring 4WD, upgrading a caravan, or fitting out a work ute canopy, we build systems that actually suit how you use your vehicle — not just a generic kit.

We work with trusted components, proper cable sizing, protected installs, and clean workmanship designed to last.

Dual Battery Systems

Custom-designed systems for touring, camping, and trade use. We match your setup to your charging needs, load demands, and driving style.

Caravan & Touring Power Systems

Reliable caravan electrical setups including charging, battery management, DC-DC systems, and off-grid power solutions.

Anderson Plug Installations

Vehicle Charging Anderson plug for caravans, campers, and trailers — options of switched and always-live setups.

Full canopy fitouts

We can handle all your Canopy Requirements. We install 12v Systems, Carpeted Walls, False Floors, LED Lighting, Drawers and Fridge slides.

Why Choose The 12V Lab?

✔ Mobile service across Eastern Victoria
✔ Clean, professional installations
✔ Quality components and correct cable sizing
✔ Designed for real-world use (not theory builds)
✔ 12-month warranty on all work
✔ Fully Insured with Public Liability and Vehicle Damage

We don’t just install parts — we design complete systems that work as a whole.

Mobile Service – We Come to You

We operate a fully mobile service across Eastern Victoria.

We can install and service your system at:

  • Home driveway

  • Workplace

  • Workshop or storage facility

  • Our home Workshop

Designed for Australian Conditions

Our installs are built to handle heat, vibration, dust, and long-term touring use.

We use protection methods including:

  • Correct fusing and circuit protection

  • Quality automotive Tycab cable

  • Heat shrink and sealed terminations

  • Neat, serviceable layouts

  • Load-appropriate design

Common Problems We Fix

  • Batteries not charging properly

  • Flat batteries while camping or working

  • Poor quality DIY installs

  • Undersized wiring causing voltage drop

  • Inverters cutting out under load

  • Caravan charging issues while towing

Get the Right Setup From the Start

A properly designed 12V system saves money, avoids breakdowns, and gives you confidence when you’re off-grid.

If you’re unsure what you need, we can design a setup based on:

  • How long you travel

  • What appliances you run

  • Your vehicle type

  • Your charging options (solar, alternator, mains)

Service Area

Hallam - Cranbourne - Berwick - Pakenham - Emerald - Cockatoo - Moe - Warragal - Dandenong - Clayton - Langwarren - Frankston - Mount Eliza - Mornington - Mount Martha - Dromana - Sorrento - Rowville - Knoxfield - Boronia - Wantirna - Ringwood - Ferntree Gully - Croydon - Doncaster - Burwood - Chadstone - Oakleigh - Bentleigh - Brighton - Blackburn - Nunawading - Belgrave - Basin - Mount Dandenong

Ready to Build Your System?

Get in touch for a tailored 12V solution for your vehicle.