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  Brilliant. Professional. Clean. Knowledgeable. Friendly. Easy to understand. And loves what he does. Mat will have all my work from now on. Keep it up mate.

    Barney Leigh Avatar Barney Leigh
    July 1, 2018

    Excellent service and quality workmanship I am most impressed with Matt's professionalism, knowledge and integrity. Can thoroughly recommend.

    Rob Seaton Avatar Rob Seaton
    April 12, 2016

    positive review  Matt did a terrific job adding a Foxtel IQ3 box to the satellite TV system installed in our motorhome.

    Gary Oo Avatar Gary Oo
    August 4, 2021
  • positive review  I used extreme auto for the first time today to get my dual battery system sorted. I can't praise Matt enough for his punctuality, knowledge, friendliness and workmanship..... oh and... read more

    Fab Jenn Avatar Fab Jenn
    February 9, 2017

    positive review  Matt's knowledge and experience of all 12 volt systems for vehicles and caravans is second to none! His workmanship, attention to detail, care of your property is exemplary. Can't recommend... read more

    Mark Gibbons Avatar Mark Gibbons
    August 18, 2021

    positive review  Hey just want to say thanks heaps mate for the the work you done on my car I could not be happier. I am one happy customer and would recommend... read more

    Nick Clifton Avatar Nick Clifton
    June 26, 2014
  • positive review  I thoroughly recommend Matt and his team from Extreme Auto Caravan and Camping, for any work on your 12v system in van or motorhome. He has always done... read more

    Albert Kramer Avatar Albert Kramer
    July 2, 2021

    positive review  Matt’s knowledge and professionalism is second to none. He talked us through his recommendations for the work we wanted and provided us a quote straight away. Matt and Riley did a... read more

    Heather Nethercot Avatar Heather Nethercot
    July 18, 2021

    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  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  Can't rate you highly enough Matt was excellent went above and beyond Communcation has been excellent all the way Great service keep up the fantastic work

    Andrea Conway Avatar Andrea Conway
    December 2, 2021

    positive review  Met Matt @ Caravan/Camp show 2 yrs back. Professional, knowledgeable & a great work ethic. He turned up when he said he would, did exactly what he said he would... read more

    Rockin Roy Avatar Rockin Roy
    January 28, 2020
  • positive review  Thanks Matt, I highly recommend your work. We had Matt installed and set up of the grid power system to our caravan.

    George Borg Avatar George Borg
    February 23, 2021

    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

    Matt is so the man when a woman is in distress! The electric brakes in The Gin Gypsy were not happening, all before her maiden rural voyage and he came... read more

    Glenda Clarke Avatar Glenda Clarke
    May 17, 2018
  • positive review  I have used Matthew for the first time today. I had an AES fridge problem. What a great operator. Knows his stuff, very reasonable price and nice guy to go... read more

    Kerry McCloud Avatar Kerry McCloud
    November 27, 2019

    Thanks heaps guys for pimping out my Prado and Jayco Eagle outback with awesome 12 volt gear so we are ready to go on the ultimate Aussie outback adventure , Legends cheers

    Damien Hansen Avatar Damien Hansen
    August 19, 2015

    positive review  Last week Matt installed our WiTi Alarm system and a Masten Reverse Camera to our Jayco Outback Journey Caravan. I can highly recommend him. Matt is very experienced in his... read more

    Irma Kutcher Avatar Irma Kutcher
    March 15, 2021
  • positive review  Helpful, informative and high quality of workmanship. Answered all questions.

    Alison Kay Avatar Alison Kay
    December 3, 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  Matthew and Riley are two very professional tradesmen who honoured their time and fulfilled our requirements exactly how Matthew said it would be done sorting the electrical system on our... read more

    Adrian Hill Avatar Adrian Hill
    August 5, 2021
  • 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  Matt and Riley performed an electrical upgrade on our 25’ Jayco Optimum Motorhome. Available space was very tight, and we had concerns that what Matt had suggested would not fit, but... read more

    Michael Tscharke Avatar Michael Tscharke
    March 6, 2022

    positive review  Thanks Matt for an excellent installation today! Highly recommend this friendly, efficient and hard working man to anyone! Fabulous job!

    Linda Adler Avatar Linda Adler
    February 26, 2015
  • 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  They are extremely professional and answer any question, they are extremely helpful with all aspects of caravan and vehicle work.

    Tricia Colson Avatar Tricia Colson
    July 27, 2021

    positive review  Matt is a true professional, treats every job like his own. would not hesitate to recommend Extreme to anyone looking for work done

    Ian Smith Avatar Ian Smith
    August 1, 2019
  • positive review  Extreme Auto Caravan and Camping is a awesome store

    Steven Barry Cranfield Avatar Steven Barry Cranfield
    October 17, 2018

    I would like to thank Matt for the work he has done on my Nissan Pathfinder! Matt's work ethic is unquestionable. He arrives on time and gets the job done!... read more

    Peter Roberts Avatar Peter Roberts
    December 1, 2016

    positive review  To fellow South Australian. motor Home owners..... We were having trouble that because our Inspiration Supreme by Paradise,was in storage (outside), The Vehicle Battery would slowly lose charge. Once after a... read more

    Yvonne Bendall Avatar Yvonne Bendall
    March 30, 2019

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