Having a correctly installed Dc-to-Dc charging system in either your caravan or vehicle will guarantee the charging system is kept under a managed limit.

As lithium becomes more and more popular among the 4wd and caravan industry, people are realising the added benefits of light weight, more energy dense lithium battery systems. Keeping these cells and BMS happy with regulated charge will ensure the life expectancy is achieved. No BMS disconnects and 100% state of charge is reached. A key feature to note here is alternator loading. Most modern factory fitted alternators produce their best power at 1500-2000 rpm. This is cruising RPM for most vehicles. The cooling of the alternator is done by an internal fan so as it heats up under load (i.e., a big lithium battery running from it with no regulator/ Dc charger) the stress can derate the output and failure is imminent. I have seen this on many occasions and now even more so with the onset of lithium. Running a controlled charge rate based on both your alternators output and the systems battery bank will keep things running cool, efficient and you won’t have a failed alternator or flat starter battery.

Bigger is not always better here.

An example here would be two Dc-to-Dc chargers running from a factory alternator. If one is a 25amp Dc charger and the other a 50amp Dc charger the actual load input before the Dc charger is higher. Roughly 30 amps for the 25amp Dc charger and up to 60 amps on the 50amp Dc charger. That’s 90 amps right there under bulk charge conditions. And, the bigger the battery bank the longer it will take to charge so you need to design the system accordingly. 

We specialise in the field of Dc-to-Dc charging and guarantee you get the charge rates from the system we design.

Why Choose Us

  • positive review  I called matt for some advice prior to purchasing today and I must admit his technical level of knowledge (I am a professional in a very similar industry), enthusiasm and... read more

    Cy Cox Avatar Cy Cox
    April 7, 2017

    positive review  Had my old brake controller replaced with a new redarc pro also 7pin to 12 pin change over and a new red Anderson plug installed. Cannot fault the workmanship of... read more

    JIm Leanne Wagner Avatar JIm Leanne Wagner
    April 2, 2022

    positive review  Matt and now Charles have worked on my last 4 cars and 1 vav. nerver have these guys let me down or given me poor advice. you boys rock

    Daniel Colson Avatar Daniel Colson
    May 24, 2019
  • positive review  It is hard to find service this good in any industry these days. I was very impressed with Extreme Auto Caravan and Camping. Matt was extremely professional and courteous. Work... read more

    Tony Parrella Avatar Tony Parrella
    June 16, 2022

    positive review  Extreme Auto Caravan and Camping is a awesome store

    Steven Barry Cranfield Avatar Steven Barry Cranfield
    October 17, 2018

    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 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  Matt has installed a Solar battery system on our van, dual battery systems on two Utes, as well as UHF Radios, Light Bars and Spotties. This has all been done... read more

    Baz Bec Sims Avatar Baz Bec Sims
    February 29, 2020

    positive review  Best service and workmanship around.

    Andrew Delsar Avatar Andrew Delsar
    June 29, 2015
  • positive review  Great service and he knows his job

    Graeme Oxford Avatar Graeme Oxford
    November 25, 2018

    positive review  We didn’t mind driving up from Melbourne and waiting for over 3 months for a booking to get some of Matt’s 12volt expertise in upgrading our lithium power... read more

    Preeti Singh Avatar Preeti Singh
    July 14, 2021

    positive review  Matt is the most knowledgeable auto electrician ever met. Fantastic work always with our safety in mind. Designs & connects everything so it’s easiest to operate & optimises use of... read more

    Rose Stewart Avatar Rose Stewart
    June 6, 2021
  • positive review  Matt installed our 300 watt panels, Victron BMS and Tuit Diesel Heater. Very neat and tidy and great system knowledge and always polite. A great tradesman

    Dale Lawrence Avatar Dale Lawrence
    November 27, 2020

    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  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  Matt provided excellent service in a friendly, helpful manner. His attention to detail is extraordinary and his knowledge and product is exactly what needing

    Sue Harris Avatar Sue Harris
    October 27, 2021

    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  Excellent service. Couldn’t do enough for me. Very happy customer. Would definitely recommend their services.

    Brett Loveday Avatar Brett Loveday
    July 8, 2018
  • positive review  Matt has done work for me on both my car and van, and he’s quality of work and knowledge is exceptional. He takes the time to explain what he’s going... read more

    Wayne Donnelly Avatar Wayne Donnelly
    March 25, 2019

    positive review  Matt was fantastic no more problems all working great someone who knows what there doing the work done proves it , I’ll never use anyone else highly recommended your a... read more

    Sharon Dunnicliff Avatar Sharon Dunnicliff
    February 22, 2020

    positive review  We own a Kimberley Karavan in South Australia. Matt has replaced the original 550 watts of failed solar panels with 690 watts of new panels, added a 25 amp shunt,... read more

    Julian Lee Avatar Julian Lee
    November 24, 2020
  • positive review  Such a professionally run company. Matt is so good at what he does and is a legend. Arrived on time and went above and beyond to get us all set... read more

    Shonel Shute Avatar Shonel Shute
    April 4, 2019

    positive review  We have used Matt 3 or 4 times. Always found him to be most helpful. He is extremely thorough and his work is neat and precise. We highly recommend... read more

    Helene Scott Avatar Helene Scott
    May 30, 2020

    positive review  Riley might only look “12” but knows his stuff…great job and good communication from Matt…thanks

    Gene Patreece Curtis Avatar Gene Patreece Curtis
    February 17, 2022
  • positive review  I had Charles come out last Thursday to wire up second battery with a dc dc charger. What a great job he did. Plus a great guy also. I have... read more

    David Griffin Avatar David Griffin
    June 24, 2019

    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  We recently had a dish installed and Matt's service was outstanding , we couldn't be happier with the product and the installation . i would highly recommend Matt

    Haydn Fowler Avatar Haydn Fowler
    November 18, 2021
  • positive review  Great professional service , solved a problem in 5 minutes that had us stressed for a couple of months, all because the manufacturer didn’t put the correct size fuse... read more

    Janice Key Avatar Janice Key
    November 19, 2021

    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  After having a charger die a quick call to Matt and even though he is booked through to the end of the year, almost, a cure was found and... read more

    Mark Cowin Avatar Mark Cowin
    July 2, 2021

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