Ever wanted to be able to power appliances like fridges or induction cookers in your 4wd, caravan or RV? The system should isolate and protect the starting battery from the power drain. The power should be drawn from a completely separate battery to that of the starter battery. The system should be capable of bringing the secondary battery to aid vehicle starting (if applicable). The alternator should charge the starter battery first and then divert power to the secondary battery automatically. Dc-to-Dc charging is a desired option as its ability to fully charge a secondary battery is achieved. Cable sizes play a massive role in the system especially over great distances through Anderson connections. Having the incorrect size cable can rob your system of charge. Correct monitoring of the system is just as important as the system itself.

Why Choose Us

  • positive review  Mat and Riley installed a diesel heater in our caravan and did an excellent job. Thanks once again Mat

    Deb McGinlay Avatar Deb McGinlay
    October 18, 2021

    positive review  Matt and Riley just set up our van to 12 volt, set the tow rig up with dual batteries and installed spot lights. We are so happy with their work,... read more

    Ingrid Elzinga Avatar Ingrid Elzinga
    October 1, 2021

    positive review  Matthew was very accommodating with anything we ask for. He is very professional and did a very clean job not leaving any mess. We would also like to thank... read more

    Lee Inns Avatar Lee Inns
    August 3, 2022
  • positive review  There are good reasons that these guys are flat out and booked months in advance. Courteous, punctual, knowledgeable and informative, but most of all, their work is of the highest... read more

    Hilton Gumbys Avatar Hilton Gumbys
    August 17, 2022

    positive review  Hi I would highly recommend extreme auto caravan and camping I have used them twice and both times were prompt and professional in all they did Matthew and Riley were... read more

    Graham Odgers Avatar Graham Odgers
    September 8, 2021

    positive review  Sometimes you have to wait for the best....we have had a number of electrical problems over many years which cost us both time and money...while caravanning we spend the majority... read more

    Madelyn Bansemer Avatar Madelyn Bansemer
    July 29, 2021
  • positive review  This is the 3rd time we have used Extreme Auto and every time Matt has been extremely punctual, worked quickly and spent time to explain and recommend the best for... read more

    Kingsley Brundell Avatar Kingsley Brundell
    September 28, 2021

    positive review  Had my motor home electrics fixed waited 2 months for these guys but it was worth the wait Didn’t want anyone one else great job Riley and Mat This business knows... read more

    David Burns Avatar David Burns
    August 11, 2022

    positive review  Matt was on time, friendly, professional, very organised and absolutely knew his stuff. He took the time to show me that he'd tested the connections and how everything hung together.... read more

    Angela Carson Avatar Angela Carson
    January 14, 2019
  • positive review  Matt recently installed my diesel heater. His business model is spot on. He books you in, confirms the day before he comes, sends you an sms when he... read more

    Marcus Hooper Avatar Marcus Hooper
    May 12, 2019

    positive review  Awesome job done by Matt again! You always do an exceptional job & help us after with the final details! Have been using you now for several years on different... read more

    Katrina Miller Avatar Katrina Miller
    February 13, 2022

    positive review  I would highly recommended Matt to anyone his workmanship and knowledge is second to none

    Lance Edwards Avatar Lance Edwards
    October 4, 2018
  • positive review  Matt was excellent to deal, turned up on time with more than enough solar panels and gear to handle any issues. Installed an excellent system that works well, sorted out... read more

    Drew MacKenzie Avatar Drew MacKenzie
    February 25, 2022

    positive review  Extreme Auto did a superb job installing a diesel heater on my houseboat. It was a complex task but done extremely knowledgeably and professionally, very neat and clean.

    Barbara Venn Avatar Barbara Venn
    August 10, 2021

    positive review  So happy with the service, knowledge and care shown by Matt and Charles. They certainly have their way around everything 12 Volt. The new Solar system they've set up... read more

    Andrew Jackson Avatar Andrew Jackson
    July 10, 2019
  • positive review  Very professional, boys are very knowledgeable regarding solar, I’ll will recommend to friends

    Mick Patto Avatar Mick Patto
    October 28, 2021

    positive review  I have used Matt for all my 12v set ups over the last few years. Great guy who gives great service and knowledge of his trade. Thanks Matt for replacing... read more

    Judy Snider Avatar Judy Snider
    November 28, 2020

    positive review  We travelled 1400km for our massive off grid upgrade on our caravan. We are extremely happy that we can run all of our appliances with ease. A totally thorough, and... read more

    Fred Kirchen Avatar Fred Kirchen
    January 21, 2022
  • positive review  Matt did a great job very professional, great communication and polite, I will highly recommend him

    Keith Fleming Avatar Keith Fleming
    March 11, 2019

    positive review  We have been using Matt’s services for a while now, when you’re on a good thing, stick to it. Great service from Matt, and now Riley. No job too small... read more

    Alana Odam Avatar Alana Odam
    November 4, 2021

    positive review  Riley fitted a Tuson sway control to my caravan. He was on time, explaining what would happen and the workmanship was A1. Riley even rectified a small electrical issue not... read more

    Anthony Genovese Avatar Anthony Genovese
    February 23, 2022
  • positive review  Had Matt install reversing sensors and LED indicator on my Sorento SUV and must say I am very impressed with both his workmanship, professionalism and good old customer service. His... read more

    Nicholas Ng Avatar Nicholas Ng
    December 14, 2015

    positive review  Excellent job today by Matt..friendly, has alot of knowledge and very professional. Standard of work is second to none will definantly call for more future work. Thanks Matt!!

    Mischa Csaky Avatar Mischa Csaky
    February 11, 2015

    positive review  Two words……..Absolutely awesome! Our experience with Matt was excellent …. Any query including original booking was responded to almost immediately. He arrived when he said he would, completed the job... read more

    Janette Claire Avatar Janette Claire
    April 19, 2022
  • positive review  Reviewing from a different perspective... As a supplier to Extreme, what made my decision to supply to Matt was the consistent attention to detail and quality of work. I spent... read more

    Paul Freeman Avatar Paul Freeman
    December 6, 2021

    positive review  Our thoughts - professional, helpful and willing to go the extra mile. Our newly constructed slide-on camper had a Victron / Safiery system installed in it. Matt came out and before... read more

    Darren Canfield Avatar Darren Canfield
    May 1, 2022

    positive review  Thoroughly recommend Matt and his team for their customer service. Nothing is too much trouble, even providing a replacement cap for a diesel tank installed a couple of years ago.... read more

    Terri Bateup Avatar Terri Bateup
    June 16, 2021
  • positive review  Matt does an amazing job and thinks about what you need for the type of travel you do. Very professional with attention to detail. Cannot recommend him enough! Had him... read more

    Peta Matthews Avatar Peta Matthews
    May 26, 2021

    positive review  Recently had an upgrade to our caravans off grid electrical system, Matt and Riley work was very professional leaving no stone unturned, I strongly recommend them for a quality, knowledgeable... read more

    Glenn Scott Avatar Glenn Scott
    September 13, 2021

    positive review  Monday 8 August 22 I had Riley come and fit a reversing camera system to my caravan and screen to my car. He also added two Anderson plugs to my... read more

    Maree Tumbas Avatar Maree Tumbas
    August 10, 2022

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