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 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 to do and how you will get the most out of your set up. Matt has had to fix up other people’s dodgy work, who call themselves RV auto electricians. Matt is the only one I trust to do the job correctly and safely.
March 25, 2019Awesome 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, 2022Thanks 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, 2019 -
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, 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 !!
August 17, 2018Matt 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, 2021 -
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.
August 10, 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, 2021Thoroughly 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 Thanks Matt.
June 16, 2021 -
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, 2022Matt 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, 2021Matt provided excellent service in a friendly, helpful manner. His attention to detail is extraordinary and his knowledge and product is exactly what needing
October 27, 2021 -
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 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, 2021I 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.
June 24, 2019Met 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 do & traveled to our rural area (250klms) to do it - twice! I recommend him 100%. I will continue to use for as long as he is in business. Thank you Matt.
January 28, 2020 -
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 or too big. Recent issue with brake controller and Riley was here the next day.
November 4, 2021Matt did a terrific job adding a Foxtel IQ3 box to the satellite TV system installed in our motorhome.
August 4, 2021Monday 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 car. I would recommend Extreme Auto caravan and camping to everybody. Riley arrived on time and his work was the best I have ever seen, so neat and tidy. He was so respectful of my new car (Ford Ranger Sports 2022). The camera on the van looks great to. Thanks again to Riley and Matt
August 10, 2022 -
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 field. He is more than happy to answer all your questions and provide advice. We had a problem with the reverse camera and he helped us fix it giving instructions over the phone while he waited. Unfortunately Jayco mismatched our wiring. Next our Diesel heater needs to be installed and Matt’s got the job!
March 15, 2021Such 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, 2019I would highly recommended Matt to anyone his workmanship and knowledge is second to none
October 4, 2018 -
Thanks Matt for an excellent installation today! Highly recommend this friendly, efficient and hard working man to anyone! Fabulous job!
February 26, 2015I 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 my panels & interior bed lighting 👍😊
November 28, 2020Had a great job done by Mat & Riley fitting my 330ah mercury battery (power paul) also relocating my Victron gauge to a great spot. Top job boys., on... read more top of the passed great work, redarc bc dc charger, Victron 3000 watt inverter, & extra 600Watts of solar.
January 23, 2022 -
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 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
July 29, 2021Mathew and Riley, excellent prompt service and advice as expected, excellent quality work and always patient with my questions
August 5, 2021We 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 him for any auto and caravan electrical job.
May 30, 2020 -
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 on my van is first rate and their workmanship is second to none - all at an extremely competative price. Thanks boys!
July 10, 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, 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.
July 1, 2018
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