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
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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 out a couple of times to fix things on the camper and when we upgraded the car to get us off road again.
Peta Matthews
May 26, 2021Thanks Matt, I highly recommend your work. We had Matt installed and set up of the grid power system to our caravan.
George Borg
February 23, 2021Not only was Matt very efficient - professional and extremely knowledgeable about the work he does, he is also 'old school' when it comes to manners - respect and friendliness.... read more He also took the time to explain and look at a couple of other other things on/in my van that I didn't understand and that had nothing to do with the solar panels that he was installing for me. Also, when the job was completed he cleaned up after himself !? I am extremely happy with the job and also had a very pleasant few hours in Matt's company. I would highly recommend "Extreme Auto & Marine" to all. THANK YOU so much Matt !!
Marcia Veale
August 17, 2018 -
Thanks Matt, very happy with the job you did with the added extra Solar and new batteries, very professional and as added bonus, the Drifter Panel works a treat! 😊 Would... read more recommend Matt anytime!
Leanne Shanks
May 28, 2019Best service and workmanship around.
Andrew Delsar
June 29, 2015Excellent service. Couldn’t do enough for me. Very happy customer. Would definitely recommend their services.
Brett Loveday
July 8, 2018 -
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
February 11, 2015Great 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 when built . Would highly recommend Matt. Thank you , Janice & Alan
Janice Key
November 19, 2021Had 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 caravans/motorhome electrics highly recommend 👍 David B. West Beach
David Burns
August 11, 2022 -
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 up for free camping!! Would highly recommend.
Shonel Shute
April 4, 2019Matt 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 he assured us it would. They managed to weave their magic, and everything fitted as he said it would. We can see why Matt and Riley get rave reviews as their work is of the highest standard, everything they put in is neat and wires labelled. Their professionalism is second to none. Also Matt tidied up a bit of Jayco’s handiwork, couldn’t stand to see it looking so messy. Would definitely recommend Extreme Auto for any Electrical work on your Motorhome or caravan. Thanks Matt and Riley.
Michael Tscharke
March 6, 2022Recently Matt and Riely installed a Monster Of grid solar system into our new Avida Esperance motorhome. After many queations asked by Matt on the requirements that we were expectng in... read more our off grid system and many Questions answered, Matt designed the monster. Matts knowledge and committment informing us and instalation surpassed all expectation, after installing the system which Matt designed he ran though and tested every component to the limits and thoroughly instructed us on usage of the monster. Highly recomend Matt & Riely if you are looking to be satisfied with your purchases for your RV, Motorhome or any camping requirements. The following system was designed by Matt for our personal needs for off griding. 1365AH (16.3kwh) custom off grid lithium set up. 🔋4 x Power Paul Australia Custom lithium batteries. 🔋1.2 KW of roof mounted solar 🔋Victron Multiplus inverter charger running on all the factory CMS outlets Including the microwave, air conditioner, washing machine, hairdryer induction cooker air fryer and more. All completely from the battery system and solar. 🔋Victron smart solar charge controllers 30 and 50 🔋Victron 100a DC-DC charger 🔋Victron Touch 50/CERBOGX 🔋Victron Smart shunt 🔋Victron Lynx distribution
Domenic Centofanti
April 11, 2022 -
Matt resolves our diesel heater issues when the seller and fitters would not. Thanks Matt your heater has been reliable and efficient. Highly recommend Extreme
Glenda Smith
July 17, 2019Matty and Riley have been exceptional. They are the best in the business and know their stuff. Thanks for pointing out Factory Faults with our van so they can... read more be rectified under warranty.
Karen N Terry Beeby
November 19, 2021Brilliant. 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
July 1, 2018 -
Matthew took the time to ring me after my initial email enquiry, talked me through my options, did a quote outlining costs and while I had a lengthy wait due... read more to his workload he turned up exactly when he said he would and improved our off grid 12v system on our caravan. He also fitted us in to do some car wiring a few weeks later when he had a cancellation. It is obvious he is passionate about his work and attention to customer service, technical detail and quality installation. An added bonus is his mobile service even though we are outside the metro area, Highly recommended. David Hodge
Kristin Hodge
March 23, 2022Matthew was on time, informative, polite, efficient and completed great work. He installed a UHF Radio and Antenna then gave me instructions how to use. I also had a damaged... read more Caravan T V antenna which Matthew also fixed, then he fixed my caravan reverse camera cord. These extra items didn't take Matthew very long but he certainly saved me time and money as he didn't charge me. Support small business.
Judy McDonnell
March 13, 2020Had 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 competitive pricing is a bonus as well, along with his mobile workshop. Highly recommended!
Nicholas Ng
December 14, 2015 -
Great job on our Pajero! Workmanship is of the highest standard. Great service and a fantastic job. Thanks Matt. �
Jackie Daniel
November 25, 2016Thanks 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
August 19, 2015I 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 some more jobs soon and wont hesitate to use them again.
David Griffin
June 24, 2019 -
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 caravan. We will booking Matthew and Riley for a return job to install solar panels on our Windsor pop top
Adrian Hill
August 5, 2021Mat and Riley installed a diesel heater in our caravan and did an excellent job. Thanks once again Mat
Deb McGinlay
October 18, 2021Matt 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
October 27, 2021 -
Mathew and Riley, excellent prompt service and advice as expected, excellent quality work and always patient with my questions
Shane Ash
August 5, 2021Sometimes 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 of time off the grid....Matt solved our problems and we couldn’t be happier ....a big thank you to you and Riley for your professionalism...I would tell everyone that if you can wait, get Matt at Extreme Auto Caravan and Camping to do your work...he’s well worth the wait.....owners of a Lotus Freelander....Col and Maddie
Madelyn Bansemer
July 29, 2021We 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 needs, SatKing Pro satellite and Cel-fi Signal booster and Sirocco fans installation to the bunk as well as additional solar panels on our JB Scorpion Sting. We’d rate Matt’s knowledge to that of an ‘Expert’ in his field. Matt and his apprentice Riley have a lovely disposition, great work ethic and utmost regard for the client’s gear. They covered all surfaces before working on them, even put cardboard on the floor inside the van, taking great care not to scratch or damage the caravan. Even their ladder has a soft protective foam to avoid damage to the van when leaning against it. They arrived on time, worked diligently, cleaned up after themselves and even went the extra mile to repair / amend some rather ordinary factory work on the caravan which was well outside the scope of their engagement with us. We found the price to be reasonable and the quality of their work is unmatched. After sales support is amazing with Matt. He is not shy to answer his phone and attended to your queries. Will be using and recommend Matt’s service in the future without the slightest hesitation. Thank you Matt and Riley. We love the work you have done. We can now free camp for so much longer, have phone reception with Cel-fi booster to work remotely and the SatKing to enjoy TV in the middle of no where and kids can stay cool in WA and the NT with their new fans Cheers Daniel, Preeti and kids!
Preeti Singh
July 14, 2021 -
We have been using Extreme Auto for a number of years both with our old van and our current new van. Matt and Riley are fantastic to deal with, work... read more is carried out professionally and all looks like it was carried out when van or car was built. They arrive on time and will stay until the job is complete. Any issues are promptly resolved and we would not hesitate to recommend them to anybody for both car and caravan work. Thank you to both and we will not hesitate to contact you should we find any other 12 volt work we need done the Jarrett’s.
Dave Chris. Jarrett
November 2, 2021Matt 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 the wires at the batteries and left no mess. Would highly recommend Extreme Auto Caravan and Camping for your solar and 12volt needs. Thanks again Matt
Drew MacKenzie
February 25, 2022Extreme Auto Caravan and Camping today upgraded our 1997 Island Star pop top to enable us to free camp with 12V power. We now have a 200... read more watt solar package including regulator, remote, installation, cable, fuse, conduit, terminals and setup. we also have an Anderson plug on the drawer, dual SUB outlet, 2 12 V outlets, accessory sockets and 7npin flat plug. Matt and Ryan have our van very safe and user friendly, and best of all automatic. All we need to do is hook up and go anywhere. The highly professional work and attention to detail was outstanding and nothing was too hard to achieve. Also the care and protection to the van whilst doing the work in rain was much appreciated and on top of all that they came to us. Thank you very very much and we highly recommend them to anyone. Julie and Adrian Frost.
Julie Frost
April 23, 2021
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