Upgrading our caravan solar installation

A direct link to the SDC12 Solar charge controller - trumawebshop.com/product/trum... (Has come down in price now too!)
In this video I upgrade our solar controller and give a quick breakdown in what different controllers do, and by making 1 change we can improve our solar capabilities by 30%
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CHAPTERS
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0:00 Introduction
01:34 The Solar Set up
03:47 The PWM Solar controller
06:58 The MPPT Solar controller
08:19 Comparing the 2 controllers
08:52 Installing the new controller
10:23 The Truma SDC12 MPPT Controller
13:09 Using Solar when on hook up
14:04 Conclusions

Пікірлер: 75

  • @kevinlawrence2127
    @kevinlawrence212711 ай бұрын

    Great VLog. keep up with the good work. I bought a brand new Swift challenger 560 in 2021 fitted a Sargent solar controller. As I go off grid a lot, what Swift fitted wasn't up to the job & not fully charging the caravan AGM battery, and over winter battery went flat. So I have done the same as Steve Bloxham and had fitted MPPT controller which allows Bluetooth monitoring and greater control of charging profiles, from a world renown company "Victron". A leading solar brand - one of the worlds best for on/off grid applications. even on poor days now it keeps the battery topped up. Victron products are not cheap, but you get what you pay for if you want the best. And the results speak for themselves.

  • @arimington-is7gv
    @arimington-is7gv11 ай бұрын

    Thanks Dan, very useful video, looking forward to any updates 👍

  • @steveone9375
    @steveone937511 ай бұрын

    Great video,,I can feel a project coming on

  • @graemegibson3064
    @graemegibson306411 ай бұрын

    Well explained video and easier to understand than reading the instruction manual. Thank You 👍

  • @PH46369
    @PH4636911 ай бұрын

    Thanks Dan. Will be looking to purchase the MPPT controller. A good upgrade.

  • @iamian7226
    @iamian722611 ай бұрын

    Brilliantly detailed and blue collar explanation as well, thank you for your great content and hopefully , long may it reign.... legend of a Tee shirt too 😉

  • @chriscurwen3059
    @chriscurwen305911 ай бұрын

    Great video, Dan. Many thanks.

  • @twogotowing
    @twogotowing11 ай бұрын

    Brilliant video Dan. We can't believe that our van has the upgraded controller already (perhaps these have become more standard in recent years?). You video also really helped us to understand what the lights mean. Thanks.

  • @Martin-pv9lj
    @Martin-pv9lj11 ай бұрын

    Excellent video Dan

  • @colinrimmer789
    @colinrimmer78911 ай бұрын

    Every day a school day Dan, thanks for the info.

  • @michaelvincent1425
    @michaelvincent142511 ай бұрын

    Nice one, been waiting for this one for years. I have an MPPT controller but needed an idiots guide to get the difference through my thick head. Cheers

  • @TheTrudgians

    @TheTrudgians

    11 ай бұрын

    Glad I could help!

  • @homersrevenge3691
    @homersrevenge369111 ай бұрын

    Another good video and well presented 👍

  • @TheTrudgians

    @TheTrudgians

    11 ай бұрын

    Thanks 👍

  • @jimjohnson1732
    @jimjohnson173211 ай бұрын

    Thanks for vdeo and superb explanation, greatly appreciated 👏

  • @jasonmaginnis9835
    @jasonmaginnis98352 ай бұрын

    Superb video

  • @SuperJoehealy
    @SuperJoehealy11 ай бұрын

    Great video Dan I would love to see a digital screen added bit of man thing but easiest to understand and a visual guide you can easily see just by glancing at just makes things easier Joe 🇬🇧ps want to see you guys on holiday in you’re new van !!! Well that’s what it’s for.

  • @davidhartley2373
    @davidhartley237311 ай бұрын

    Just fitted a MPPT charge controller to my solar system and have noticed a marked improvement as we do a lot of off grid caravaning

  • @PAULOatham
    @PAULOatham11 ай бұрын

    Thanks soooo much for this brilliant tutorial!!!

  • @TheTrudgians

    @TheTrudgians

    11 ай бұрын

    Glad it was helpful!

  • @robswiseways5697
    @robswiseways569711 ай бұрын

    Very well explained Dan. I haven’t a solar panel but it was interesting to watch👍. Seriously I think you should be a college lecturer 😁. Hope you’re all well. All the best, Rob & Gail 😃

  • @robtheplod
    @robtheplod11 ай бұрын

    Great explanation!!

  • @caravaningincarathevan467
    @caravaningincarathevan46711 ай бұрын

    My controller has 2 USB ports aswell. Great gadget

  • @JohnCray
    @JohnCray11 ай бұрын

    Fantastic dan great information

  • @user-fw7sz3ew9w
    @user-fw7sz3ew9w11 ай бұрын

    I love going off the grid. I have had the spark mppt for the past 12 months with the Bluetooth and control panel and paid just under 100 pound . Great video though stay lucky

  • @steveb1856
    @steveb185611 ай бұрын

    Great explanation Dan, and MPPT is a very good upgrade. Personally I’d have fitted a top notch Victron controller that allows Bluetooth monitoring and greater control of charging profiles. Anyone contemplating a change beware of no name cheap MPPT controllers sold on eBay or Amazon, many are just PWM controllers with MPPT printed in the front!

  • @vincejenkins1143

    @vincejenkins1143

    11 ай бұрын

    Victron all the way Steve!

  • @petetinsley5388

    @petetinsley5388

    11 ай бұрын

    Are you sure about that 'mppt printed on the front ' i was just looking at one myself

  • @richardcalvert1926

    @richardcalvert1926

    9 ай бұрын

    Hi Steve, I have the same PWM controller that Dan was replacing but mine seems to be faulty. What Victron one would you recommend and if you can let me know if there are any useful additions that are also available to purchase? Thanks. Great video Dan as always

  • @roymorgan138
    @roymorgan13811 ай бұрын

    Thank you Dan for a very informative upload that will help me understand how things work inside my van, I will also look into upgrading mine as well, could you also let me know were you purchased the unit, thank you again Dan.

  • @colinmew7139
    @colinmew713911 ай бұрын

    Dan very good video very interesting well done.

  • @TheTrudgians

    @TheTrudgians

    11 ай бұрын

    Thanks 👍

  • @m4ty4shaw
    @m4ty4shaw11 ай бұрын

    I off grid all year round, I have refillable gas, 280ah lithium and 240w solar. It has saved me thousands over the past couple of years and more importantly met lots of new friends on rallies.

  • @GedandMichele
    @GedandMichele11 ай бұрын

    Great vlog and very worthwhile upgrade.Agree with comments regarding an isolator.Did you consider increasing the size of your cables between mppt and battery or were they adequate for the distance?

  • @tonyconnell435
    @tonyconnell43511 ай бұрын

    Fantastic blog Dan I've got a Sargent solar panel I was wandering how to check how much it was charging the battery it would be nice to see a voltage at a glimpse

  • @TroggyPB
    @TroggyPB11 ай бұрын

    Dan. A great instructional video with all the right tips and practical advice for the layman. Basically I trod the same path on my Bailey motorhome a few years back when the Banner died due to constantly gassing itself to an early grave despite topping up. I selected two Yuasa EFB 100Ah for Leisure battery for better off grid support. Also researching Solar expert sites and reading the PWM Truma SDC10 controller manual in detail indicated that any morning with reasonable light the controller would “wake up” ramp the voltage to 14.4 and hold it there for 2 hours minimum regardless of battery SoC. Hence the gassing off. I settled for a Votronic MPPT Duo that would keep the starter battery maintained. That had a variable timer for start up 14.4 initial charge then drop quickly to Float. Also fitted a SoC monitor system from NASA BM-1 that BTs to my phone for immediate SoC of Leisure and voltages of Leisure and Starter. Since added a second Solar panel for rapid recharge of low battery.

  • @supergroups
    @supergroups11 ай бұрын

    Hi, Dan, I'm not sure that your description of how things work on EHU is true. I'm afraid I'm not nearly as good as you are at explaining these things, but here goes. The usual charger built in to our caravans (certainly our vintage of Bailey) is, as you say a constant voltage device, with current limiting and a nominal voltage of 13.8v. Now 13.8v will not fully charge a modern lead acid battery which requires a boost charge with a voltage between 14v to 14.6v depending upon the exact battery architecture. Both models of solar controller you showed are much more complex devices which are capable of delivering this charge profile to the battery and this is the purpose of the dip switches, to set a particular program for the different battery types. As I understand, with a discharged battery the solar charger will share charging duties with the EHU charger until the battery voltage is high enough to take the ehu charger out of current limiting. Once this happens the solar charger will increasingly take over charging duties until it has completed it's boost charge cycle and only then will it switch off, leaving the EHU charger to float charge at it's 13.8v nominal voltage. I have confirmed this action by dint of having a battery computer fitted and observing it directly. The upshot of this that having a solar charging system fitted even if you mostly use EHU is benefitial in that it does a much better job of looking after our batteries, for instance by reducing sulphation, which is the main problem associated with a long term float charge at 13.8v. Does that make sense?

  • @andycolley6183
    @andycolley618311 ай бұрын

    Great video Dan. I have been thinking of fitting a 100w solar panel to my van but would my lead acid 115ah battery need replacing ?

  • @rhinogooner
    @rhinogooner11 ай бұрын

    Great video Dan, I have been wanting to change to an MPPT as we go off grid. I have added a second battery in parallel and two 100 watt panels on roof plus a second controller to plug in two 50 watt suitcase solar panels when on site. Changing the controllers to MPPT is going to make a big difference. Just one comment I thought you said the 12 volts runs the fridge. Do you have a different fridge as the 12 volts is only for towing. We run ours on gas.

  • @robertpoulter8220
    @robertpoulter822011 ай бұрын

    Nice video Dan where can I get one from, very interested to upgrade my motorhome to have more off grid holidays.

  • @colingordon4
    @colingordon411 ай бұрын

    Thanks very much for sharing your videos, they’re a great help and I am very grateful. Cheers Colin

  • @RobMullin1054
    @RobMullin105411 ай бұрын

    Another brilliant video Dan, the EHU question was one I've been thinking about and you've just answered it for me!!

  • @TheTrudgians

    @TheTrudgians

    11 ай бұрын

    Perfect!

  • @alfaman679
    @alfaman67911 ай бұрын

    Hi there love the videos you put out, I have a question on inverters I understand the wattage side of things my question is, if my inverter only has 1 x 230 AC socket for me to power the appliances ie tv kettle fridge etc do I have to run an extension cable from the sole socket on the inverter to each appliance or is there a way off tapping into the caravan 230v sockets ?? Many thanks Darren

  • @Chris-wd6ce
    @Chris-wd6ce11 ай бұрын

    Hi Dan. Brilliant explanation. Thank you. Our van is less than a year old. Will this affect the warranty? Looks similar set up to yours. Brindisi grand se 2023. What about fitting a second liesure battery? For more capacity. Best regards.... Chris

  • @DJMarshy
    @DJMarshy11 ай бұрын

    Our new our new caravan has this new controller fitted We was told we don’t have adjust anything like on the old one this does it all

  • @melonieward7483
    @melonieward748310 ай бұрын

    Hi Dan just a quick question. Finally getting my caravan sorted and should get it tomorrow. Needs a good wash and as I don’t stay on mainland what’s the best stuff for a long awaited wash down? I know I have silky cream cleaner and another spray bottle of something (it’s in caravan at mo ) and also does the caravan have to be hooked up for the electrics to take the water through the taps

  • @Bugs1953
    @Bugs195311 ай бұрын

    Most company suggest a isolator from your panel and battery

  • @scott8579

    @scott8579

    11 ай бұрын

    So why don't caravan manufacturers fit one then when they come from factory?

  • @Sydney268
    @Sydney26811 ай бұрын

    Hi, interesting video, you say you want to extract more power on duller days, but the increase in efficiency is only going to be apparent on brighter days(when the PWM duty cycle is low), and even then you will probably see nowhere near 30% increase since the panel will have been chosen to suit 12v battery charging. I really can't see you will even notice the difference this makes, sure if your PWM controller is old/broken/overheating then a worthwhile upgrade, if not, probably not. Awesome presentation all the same - as usual!

  • @TheTrudgians

    @TheTrudgians

    11 ай бұрын

    Did you see the multimeter - voltage of 20v on a slightly cloudy day on our 100w panel. Since installing the MPPT and staying off grid for 9 days in mixed weather - I’ve noticed a huge uplift in charging.

  • @Sydney268

    @Sydney268

    11 ай бұрын

    @@TheTrudgians Sure I saw the 20v, that was at full load - battery discharged etc was it? Probably just the placebo effect, you wouldn't notice a huge uplift even if you did get the marketing hype full(up to)30% all of the time. It is quite obvious if you are using more power than your panel can supply, it is running at full load continuously and a more efficient controller is not going to help.

  • @Tommywinkles
    @Tommywinkles11 ай бұрын

    Hi Dan I have been following your video on the MPPT charger and I have been looking at some, but the MPPT controllers that I have looked at state, 40, 50, 60 or 100 amp What should I order?

  • @colingravenor5081
    @colingravenor50816 ай бұрын

    Hello Dan, Thanks very much for such an excellent video - as always... We have a brand new caravan with exactly this system. However I think we have a problem with the battery not being charged. After fully charging the battery at home the "Full" and "Charge " lights are on. Then after a few minutes these lights extinguish and the MMP is flashing - indicating It's not charging - (It was reading more than 13v at home..) In the last few weeks the battery has completely run down... So I imagine I have a problem. If you have a minute I would appreciate your thoughts please... Thanks very much and a Happy New Year... Col

  • @nabarnes
    @nabarnes11 ай бұрын

    Anybody thinking of doing this - Victron kit is cheaper, better supported and more widely available. The SmartSolar MPPT 75/15 is more than good enough for a 100W panel and gives you the benefit of Bluetooth control too.

  • @peterkane4524
    @peterkane452411 ай бұрын

    Love the vids and as always well made a informative, one question How do you/me set it up to charge a second battery i have now fitted. i have just connected the second battery + to + & - to - with an old set of jump leads and fitted it into a plastic battery box with a lid on it screwed to the floor. Many Regards Peter.

  • @TheTrudgians

    @TheTrudgians

    11 ай бұрын

    Hi Peter, ok if you’re wiring these in parallel, you may need to connect the solar controller to + of one battery and - of the next, in order to balance the charge. Alternatively if they are separate, use the 2nd battery terminal on the controller. It will charge one, then the next. 👍

  • @peterkane4524

    @peterkane4524

    11 ай бұрын

    @@TheTrudgians Hi Dan, Thank you for reply, i see what you mean, they are in parallel so i will give it a go. Just for info when i double checked the controller unit in my new Bailey Evora it is the upgraded unit already. Win/Win 🙂

  • @simonwalsh1871
    @simonwalsh187110 ай бұрын

    Great video, I am new a Caravanning. I have a solar panel fitted with a mppt controller and the mpp light is flashing which I understand means “ready to charge”. No other lights on the mppt controller are on. The main caravan controller shows the battery is at over 13V. Could you explain what “ready to charge” means and under what circumstances I would expect to see the it.

  • @simonwalsh1871

    @simonwalsh1871

    10 ай бұрын

    This morning it is all working as expected, maybe the “ready to charge” light flashes if there is insufficient sunlight to charge the battery?

  • @DJMarshy
    @DJMarshy11 ай бұрын

    Wen the mains switch is off does the controller still charge or does the mains switch need be on

  • @32_bits
    @32_bits11 ай бұрын

    A Victron controller imho is much better and has BT to a mobile to log charging info. But without fitting a Life04 (LFP) battery, changing only the controller the gain will be very small. A lead acid battery is good for 25% discharge, go to 50% and its life span will decrease quickly. Which means at 25% discharge the battery voltage will go below 12v. A LFP battery can discharge to 90% and still maintain 12v output. But on a site hook the cvan charger (13.8v) is set to charge a lead acid battery only and wont charge an LFP battery fully.Charging an LFP battery at 13.8v will result in a 50-75% total charge. So you will need a new cvan charger if going LFP.😢

  • @prou5
    @prou511 ай бұрын

    Surprised you didn’t go for a Victron MPPT controller, can be monitored & adjust the settings from an app on your smart phone.

  • @TheTrudgians

    @TheTrudgians

    11 ай бұрын

    I did look, but tbh - how many times do I actually need to adjust settings and already know voltage from tracker and iNet.

  • @RHJ-29-6
    @RHJ-29-611 ай бұрын

    I have a Sargent controller with sealed wiring ends going into it. Any tips?

  • @olliebodman9771
    @olliebodman977111 ай бұрын

    Love your vids But for some reason maybe because I’m bloody tired today, I started the vid and totally glazed over and listened to nothing 😂😂😂🤦‍♂️ I have no brain power left today to compute, I’ll rewatch 🤦‍♂️🤦‍♂️🤦‍♂️👍

  • @Chris-wd6ce
    @Chris-wd6ce11 ай бұрын

    Hi Dan. Just looked. It is an sdc12. 😂 What about the 2 batteries?... Chris

  • @PAULOatham
    @PAULOatham11 ай бұрын

    a question.. may be im being an idiot??? Does the caravan need to be switched on when parked in storage for the battery to be continually charged from the panels

  • @TheTrudgians

    @TheTrudgians

    11 ай бұрын

    Hi Paul - good question, and the answer is no. The controller has a direct connection to the battery, so always sending charge regardless of caravan master switch. 👍

  • @PAULOatham

    @PAULOatham

    11 ай бұрын

    @@TheTrudgians I thought so... thanks for replying..

  • @TroggyPB

    @TroggyPB

    11 ай бұрын

    @@PAULOathamBut - if you leave the master on and anything is drawing a little power, antenna?, fridge? the battery could slowly discharge over really cloudy short winter days with low solar light onto panel. An MPPT will help stop serious discharge. 👍

  • @peterkane4524
    @peterkane452411 ай бұрын

    Just a second question Dan, stable door fly screen can not be used if bottom half of door is shut due to bin on back of door, apart from leave the whole thing open any idea's 🙂

  • @Brendan-sz9xp
    @Brendan-sz9xp11 ай бұрын

    Hi Dan I have a mppt controller on my Campervan I also use the mt 50 remote meter have you looked into one ?

  • @rickym5474
    @rickym547410 ай бұрын

    The biggest crime I see is the controller location. I never understand the factory location, it is incredibly inefficient. Actually no. The BIGGEST crime is you wired up the new controller in the incorrect order. Battery connection first yes, but the controller HAS to be powered by the battery before connecting the panel. You run the risk of frying your controller by doing it the way you did it.

  • @TheTrudgians

    @TheTrudgians

    10 ай бұрын

    Wired as per instructions. And with no battery connected, no current produced by panel, explain how it could have been fried? Also, how does the physical location of the controller make it inefficient?

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