Dual battery installation Perth

Make a second battery your first thought

Dual battery system installation

As the name suggests, a dual battery system is where you have a second battery installed in your vehicle. 

This allows you to continue running accessories without draining your main (starter) battery. 

Dual battery systems are ideal if you enjoy camping or off-roading, where you often need to power a fridge, radio, or lighting system. 

The team at Voltaic are equipped with the knowledge and tools to provide a high-quality dual battery installation in Perth.

dual battery round

Installation locations

We can perform a dual battery installation on most vehicles. The key is to ensure the secondary system is isolated from your main system, so your starter battery does not flatten. A dual battery system can be installed in a variety of places in your car, depending on your vehicle type and usage requirements.

Common installation locations include:

A happy auto electrician employee testing the auto electrics of a dual battery system

Need a dual battery system installed?
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Dual battery setup for your fridge

A fresh meal or cold drink while enjoying the great outdoors can take your adventure to the next level. Keeping your food and drinks cold is easy with a fridge powered by your dual battery system. Voltaic Auto Electrical are specialists at installing dual battery systems to suit your fridge requirements.

Dual battery setup with a solar panel

If you are setting up camp for a few days or just want to keep your secondary battery topped up, a dual battery setup with a solar panel could be the solution. Using the sun’s rays during the day to power your camp at night is a great option, especially during the warmer months.

Dual battery setup for your 4x4

Dual battery systems are a popular choice for off-road enthusiasts. A reliable backup battery to start your vehicle when you are off the beaten track is a weight off your shoulders. A dual battery setup for your 4×4 vehicle will ensure you are always equipped for your next adventure.

Dual battery setup for your camper trailer

If you love the great outdoors, there’s a good chance you enjoy getting out in your camper trailer. A dual battery setup in your camper trailer makes cooking and running appliances a breeze. The added benefit of being able to power a lighting system for your campsite at night is also a huge advantage.

REDARC dual battery setup

At Voltaic we supply and recommend REDARC products. Their Australian made, high-tech BCDC in-vehicle battery charger protects your main (starter) battery from excessive discharge by isolating the secondary battery to power other non-essential appliances. 



Customer testimonials

Highly recommend this company there was no problems in squeezing us in before our Easter holiday. Kayne the technician working on our landcruiser was top notch,very informative and spot on with his diagnosis and phone manner was impeccable 👌
Booked in to have a chat with Kody, went through ideas and plans for a dual battery set up. He was very knowledgeable and had a a good plan on how to execute my idea.
When picking up the van the work done was everything we had discussed, the work done was spot on and to a high standard.
This is the second time going with Voltaic and will be back for more work in the future!
Had a urgent job to fit flashing light to a truck rung Voltaic and they were very accommodating and fitted me in the next morning
Anthony the auto electrician was a fantastic bloke and very accommodating to my needs nothing was a problem
Highly recommend this company and would definitely use them again
Thanks mate
Anthony great job 👍
Great experience with Voltaic all the way from start to finish. Jamie and Tara were very helpful with quotes, pricing and ordering. Anthony installed the light bar and UHF to my Hilux GR Sport with absolute technical precision and conducted himself like a true blue Aussie professional. Definitely be back for future works.
Awesome work Max had a new stereo system fitted very happy with it

Had a compressor fitted under the seat of my landcruiser great work thank you

Just had dual battery fitted to my 2023 Toyota V8 landcruiser thanks Max awesome job

The front bar lights and reverse lights are awesome as well thanks Voltaic great quality work I recommend Voltaic for all your car electrical needs cheers
I've been coming here to Welshpool for a while now with my FJ Cruiser and i am really happy with them. A decent sized business, with a large staff, more than one shop and a highly professional and organised operation, yet still really friendly and interactive. They are not the cheapest mob in town, but their costs are fair and reflect in the quality of their work.
Today i saw Tara at the front desk who was lovely and very helpful, as well as knowledgeable and young fella Max, who is a rippa! See you next time. JT from Kalamunda.
Recently had my ute fixed at voltaic James was fantastic to deal with as well as the girls on reception a very professional place I would not hesitate to recommend them
Booked and was in quickly.
Had a good consultation with the technician
Work was done quickly and efficiently
I was kept informed during the job by the tech about progress and any issues that may arise
Unfortunately the bloke who originally quoted couldn't do the job, however Liam Jumped in and made sure everything was done correctly, communication was great.
Kane did a great job on gauges and some electrical issues I had in my ute , I would highly recommend
Team Voltaic did an awesome job fitting slimline lithium battery, 2,000 watt inverter, mini starlink on the roof rack plus fix up a lot of the wiring from previous owner doing a DIY. Great service from Chippa on quote and great work by Dion on fitment and fixing up previous mess. Thoroughly recommend Voltaic auto electrical.
Fantastic experience from the first phone call to completion of job…. Emailed the quote and booked us in after acceptance .
The work shop is very clean and tidy and all the staff we dealt with were very pleasant to deal with.
Thank you Kayne for the work and all the advice.
after shopping around a lot i found these guys
just amazing service
young anthony explained my fitting today of the uhf and antenna mounts job on my next gen ranger , polite informative and bloody knowledgeable , install was smashed out and also showed me lots of ideas and extras that do
literally blown away job is so neat professional and can’t wait to get more things i’ve found my one stop shop
looking forward to my dual battery set up
and more

i would highly recommend speaking to this young bloke about anything you want regarding fit outs
also they have way more than what i thought in their workshop
legend mate thanks heaps
also that have a lay down yard so me being fifo for my next jobs you can leave your car their fully secure
stoked
Kayne did a great job recommending products that were suited for my requirements. He also took great care during the install and communicated well as needed. Would definitely recommend to anyone looking for a clean 12v setup.
Dion worked out a plan to install a second battery system for a Star Link. The work was done promptly and everything was very tidy. He also was very thorough in explaining how to operate the system. The pricing was reasonable. Highly recommend Voltaic and Dion
I had a fantastic experience with Voltaic Auto Electrical!

Kody was excellent throughout the process and listened to all my requests and concerns. The communication was excellent, and I was informed every step of the way. Kody followed through and did a fantastic job on my Landcruiser.

Thank you guys very much, and thanks, Kody!!
Took my car to voltaic to get some aftermarket headlights installed. Anthony did a fantastic job with the install, knocking it off in less than a day. he called me halfway through the day to let me know the plan and was more than happy to walk me through the work that had been completed when i came to pick it up. Top bloke!
Finding a trustworthy tradesperson can be daunting for me, but I couldn’t have felt more at ease. From the start, the team at Voltaic were prompt to reply, helpful, friendly, and completely upfront about costs—no hidden surprises or upselling. I never felt like a burden or that my questions weren’t valued. Their honesty and integrity truly stood out, and I’m grateful to have found a business I could rely on. Highly recommend!
Staff were very friendly and helpful. Giving helpful suggestions and advice. Pleased with the work done.
A very very capable team of young lads who heavily focus on quality and presentation. You can openly communicate with the team and they will take everything you say to account. I will be recommending voltaic to my family and friends.
After several bad experiences with a dealership (car under warranty) I decided to go elsewhere. Voltaic staff have customer service unparalleled. They went above and beyond researching different solutions (parts new, used, genuine and independently sourced) and gave me comfort and confidence that I was getting the best possible service and workmanship. Especially if you haven’t much car knowledge, I wholeheartedly recommend Voltaic. The technician fixing my car (James) brainstormed so many options for me until we found something that matched my budget and timeframe I needed my car back in. Genuine and trustworthy, James knows his stuff and is keen to help make a difference when he can.
Last minute urgent appointment to check out my electronic break system whilst driving through Perth. They fit me in and talked me through everything. Were very generous with their time and great customer service.
I recently had my car's AC fixed at Voltaic, and I couldn't be happier with their service! From the moment I booked the appointment with Tara over the phone, everything was smooth and professional. She made the process easy and ensured all my questions were answered.

A big shoutout to Dion, the technician who worked on my BMW. Being a BMW owner himself, he not only repaired the AC efficiently but also kept me informed every step of the way. Dion went above and beyond by showing me the repair process at each stage, which really gave me confidence in their transparency and expertise.

It's refreshing to find a garage that prioritizes transparency, excellent communication, and high-quality workmanship.
Thanks Anthony for the great work on the Cub Camper. Honest helpful value based service.
Work done on my car with my aux battery was great and was of very good quality. Shout out to Anthony for doing an excellent job.
Every time I take my vehicle in I’m provided exceptional customer service and transparency on costs!
Had an issue with my air conditioner they were able to rectify and repair the issue.
Staff are friendly and knowledgeable and great communication on the issue
Had my Toyota 200 series worked on by Voltaic Auto Electrical. Best in the Business
Paul has done a fantastic job on my TB48 patrol. After having issues with my aircon for over 2 years, hes redone multiple lines, fixed all the leaks and tidied up my engine bay. Very happy with the results and highly recommend

Very reasonable price too
I highly recommend Voltaic Auto Electrical for their exceptional service, expert knowledge and super friendly team. There’s no one else I trust with my car!
Excellent Service from Josh, Tara & the team!! Recommended!
Recently had an air conditioner installed on our dog trailer the service and installation from Paul Williams was excellent and nothing was a problem for him to deal with .
I had my Dmax in for a Starlink installation which included a more complex setup of an external router, external antenna, etc. Dion did an amazing job with the installation, going above and beyond with what was requested.

Dion and the Voltaic team have been incredibly accomodating, professional and have provided the best service that I’ve received when it comes to auto electrical installations.

Would happily recommend Voltaic, Dion and the team for any type of Starlink install and any auto electrical work. Thanks again!
Everyone at Voltaic were very friendly and very knowledgeable about the services I required. I was able to get in within a week of me calling up where i wouldn't have been able to get in until 2025 for the more commercialised companies like ironman 4x4 and TJM. I am very happy with the service they provided. I will be coming back for more work on our 4x4
Highly recommend this company for all your auto electrical work. We had a great technician in Anthony he did an awesome job installing Starlink in our caravan.
I’ve had quite a few electrical jobs done on my car through Voltaic. They do a very good job. They are always friendly and happy to answer any questions you may have. I wouldn’t go anywhere else! Thanks guys
I found Voltaic Auto Electrical after looking for a 12v system for my Ford Ranger over a year ago, i ended up going with one of the battery box setups as i don't require constant power in my tub. The service and quality I received on that initial job has guaranteed them a client for life. I will always go to Voltaic for all my auto electrical work and have been back for tail lights, rear lights, electrical tidying, and no doubt I will be back for more in the future.

Big thanks to the team at Voltaic.

They also have great merchandise.
Very happy with Voltaic Electrical, all staff very professional & efficient. Wouldn’t hesitate to recommend their work & advice they gave.
My car air-conditioning was blowing warm air, so I wanted it checked before the hot Perth summer arrived. I received fantastic customer service from Voltaic from start to finish. Friendly customer service, honest feedback to advise that due to the age of my car, it might be an expensive repair, speedy diagnosis and repair which ended in happy news - my gas needed topping up and a filter change. I would thoroughly recommend Voltaic Auto Electrical.
The Team at Voltaic pulled out all stops to have our vehicle fitted with a UHF radio and flashing beacon at short notice and no compromise with the quality of work carried out. Excellent service, thank you.
Can't fault them . Great service . Very polite and helpful. I'd recommend them for any of their auto electrical services .
Friendly, helpful staff, fair pricing..
Had a UHF radio/aerial installed by someone else that wasn't performing as expected so bought a new one. They took the old one out & put the new one in, in no time! Also grateful that they didn't use the aerial mount provided because it would have damaged my paintwork, and instead found a different mount that worked. I'll have no hesitation in taking my car back here for future installs!
Fantastic service by all the team and particular props to technician Kane. All issues were diagnosed and repaired, in addition to upgrades. He really went above to make sure my car was electrically safe and sound.
Kayne from Voltaic did a great job wiring up my battery to my car and getting everything set up Highly recommend this place they do a good work

FAQs

How much does a dual battery system cost?

The cost of a dual battery system depends on the type of battery you choose, your vehicle type, and where you want it installed. Our rates start from $1900 including the cost of the battery and equipment required for the system.

How long does it take to install a dual battery system?

Installation typically takes 6-8 hours depending on the type of system, your chosen installation location of the products, and the complexity of the work involved.

What is the best type of battery for a dual battery system?

The type of battery to choose for your dual battery system depends on how much you wish to spend and where you would like it installed in your vehicle. We recommend a deep cycle wet-cell battery for installation under the bonnet or in the tray of your ute. This type of battery tends to build up gasses during charging, so it needs to be away from vehicle occupants. If you would like to install the battery in your vehicle’s cabin or in a canopy, we recommend one that won’t leak, spill, or emit gasses, such as a deep cycle AGM, lithium, or gel battery.

What is a deep cycle battery?

Deep cycle batteries differ from regular car batteries in that they are constructed with thicker battery plates and denser active material. This helps them withstand the repeated charge and discharge cycles of a dual battery system.

How does a dual battery system charge?

The simplest method of charging your second battery is by using your vehicle’s alternator. The battery charges while you are driving your vehicle, in the same way as your main (starter) battery. When installing your dual battery system, we isolate the second battery from your main battery to ensure your main battery does not flatten.