Custom 12V Power Systems & Off-Grid Vehicle Specialist
Coast Custom 12 Volt designs and installs custom 12V power systems for 4WDs, caravans, motorhomes, utes and vans. Dual battery installation, solar panels, DC-DC chargers and complete off-grid power setups. Servicing Warwick, Toowoomba and the Southern Downs.
Installed to AS/NZS 3001.2:2022 standards — Safe, compliant & built for real off-grid touring.
Dual Battery Installation
Protect your starter battery while powering your fridge, lights, and accessories. We build 4WD dual battery systems for 4WDs, utes, and caravans.
Solar Energy Solutions
Van solar, canopy solar, 4WD rooftop, and caravan solar. We install panels and MPPT charge controllers so your batteries charge all day from the sun.
Off-Grid Power Systems
Complete off-grid setups with solar, dual battery storage, and DC-DC charging, so your fridge runs and your lights stay on no matter how remote you go.
View All Our Services
We offer a full range of 12V installations and custom off-grid setups. See everything we do for caravans, utes, vans and more.
Warwick and Toowoomba QLD
Custom 12V Power Systems Built For Your Vehicle
We are 12V power specialists servicing the Southern Downs and Toowoomba regions. Designing and installing custom 12V systems for 4WDs, caravans, motorhomes, vans and utes using quality components including Victron and Australian-made batteries. Every system is designed around what you want to run, how long you will be away and the vehicle you’re driving. Our customers have completed four-month remote trips across Australia without plugging into mains power once. We are also authorised suppliers and installers of Bushman 12V fridges.
Our Services
Off-Grid Power
4WD and Caravan Off-Grid Power Setups for Remote Trips
When you are spending weeks away from the grid, a power system that has been properly designed from the start makes all the difference. We build complete off-grid setups with solar panels, a dual battery system and DC-DC charging so your fridge stays cold, your lights stay on and you stay out as long as you want. Our customers have run air conditioners and induction cooktops completely off-grid on four-month remote trips without touching mains power. We size every system correctly for what you are running, so nothing is undersized and nothing is wasted. Whether you are in a 4WD, caravan, or motorhome, we will design a setup that works for you.
Van Solar Installation
Solar Panel Installation for Vans, 4WDs, Utes, and Caravans
From a van solar installation to a caravan rooftop solar setup or canopy-mounted panels on a ute, we design and install systems that work efficiently from day one. Using quality panels and MPPT charge controllers to get the maximum charge out of every hour of sunlight. If you need solar integrated with a dual battery system, we handle the whole thing together as one build.
OUR APPROACH
Quality Comes First, Every Single Time
We stick to high-end gear like Victron and Australian-made batteries because they actually last. Our focus is on clean, professional wiring and setups that are done right the first time. You get a reliable system without the guesswork, built to handle exactly what you need it to do.