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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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 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!
July 14, 2021Matt did a terrific job adding a Foxtel IQ3 box to the satellite TV system installed in our motorhome.
August 4, 2021Matt 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 The visible bits of the cabling showed he'd put time and effort into making them sturdy and protected from the elements. Super happy with his work and lovely guy to deal with.
January 14, 2019 -
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 professional job 100% recommend Thanks Matt and Riley
January 21, 2022Awesome 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 projects & you never disappoint! Thanks again Kat 💙
February 13, 2022Had 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
August 11, 2022 -
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.
November 2, 2021Mat and Riley installed a diesel heater in our caravan and did an excellent job. Thanks once again Mat
October 18, 2021Extreme 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.
April 23, 2021 -
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.
April 4, 2019Recently 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 and on time performance. 22/12/21 Into our 3rd week of traveling through Tasmania most of that low cost camping and so far the set up Matt has installed has been fantastic , we’ve run most electrical appliances when required including the air fryer, kettle, toaster, coffee machine, microwave (haven’t needed the A/c here) . We regularly get down to 80% capacity after morning breakfast and have been impressed from the solar input quite often reaching maximum capacity (50 amps)
September 13, 2021Matt and Riley completed a great job, very neat, clean and exceptional service!!! thank you for your effort lads!
March 26, 2020 -
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
November 27, 2020Matt 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
February 25, 2022Great service and he knows his job
November 25, 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!
May 28, 2019Matt 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 battery & solar when off grid. Great apprentice in Riley tireless polite worker Extreme auto is so busy u have 2 wait several months for his expertise but the wait is worth it
June 6, 2021I 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 a very professional job whenever I call for his assistance. Today he upgraded our lithium battery charging system. He knows what he is talking about when it comes to off grid electrical systems. Thanks Matt.
July 2, 2021 -
Riley might only look “12” but knows his stuff…great job and good communication from Matt…thanks
February 17, 2022We had the Red Arc tow pro elite installed by Matt he provided all the information we needed over the phone, he came out on... read more time completed the work in a thorough precise manner at a competitive price and I didn't need to be there. Will use again soon.
November 10, 2016Matthew 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
August 5, 2021 -
Job done as required. Excellent work does great job.
September 10, 2019Matt’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 fantastic job installing 3 x solar panels and a diesel heater in our Concept caravan. We were recommended to him by a couple of very satisfied customers. Now we too are very satisfied customers. Can’t wait to get out and about in our caravan. Thank you both
July 18, 2021Matt 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.
May 26, 2021 -
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
July 17, 2019Matt 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 so professional and took the time to explain everything to us newbies. Thanks guys we are thrilled.
October 1, 2021Matty 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.
November 19, 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 to the rescue! Fixing up someone else’s work and all done with such attention, skill, knowledge, care and kindness. Thanks Matt - you can have all the guns you want at the next event!
May 17, 2018Matthew 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 Riley for doing a very good job on the solar panels. We would definitely recommend them. The wait was worth it. Thank you
August 3, 2022Been following Matt for a while he has the knowledge to give good advice and his workmanship is 2nd to none Looking forward to getting my setup in the Jayco Journey... read more Outback of grid system . An excellent company to deal with. Cheers. James Dunn
May 12, 2022
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