'WHY 24 VOLT?' Victron Energy MultiPlus-II 2X 120V, 3000VA 24-Volt pure sign wave inverter!

Victron Energy MultiPlus-II 2X 120V, 3000VA 24-Volt Pure Sine Wave Inverter and 70 amp Battery Charger

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[Tom-Fisherman]

Let me tell you something I’ve installed for a living for many years, . This video is Bar-none the very best video I’ve ever seen on an install. You hit every single major point of installation you didn’t take four hours to do videotape —literally what you did & showed —was all spot on. And the phrase you want to remember is for a given load, voltage and current are inversely proportional. The only thing I want to add is that using the correct type of heat shrink should have adhesive in it so that when you heat it up, both ends of the heat shrink, you’re putting a coating that comes out both ends to make it watertight so you get no corrosion at your union. It also adds rigidity and will wiring will vibrate a ton less. That makes the connection last forever. Second if you use tinned connectors on your wire ends, you’ll save yourself some corrosion on those connectors. Usually bare copper can start turning green from moisture, depending upon where you live. Those are just a couple of dumb things to throw out there. It’s just you did such an excellent job up in your install, it’s an easy thing to add and will up your game —is really easy spending a few more bucks on the connectors and maybe some better heat shrink.

[TsaWind]

Look GREAT!!! You mentioned a future 12v lithium battery, I would be a little hesitant to do it personally, as you probably know, you cant charge them in the cold and they tend to have a lot lower CCA if you need to crank a genset ect. Also this is normally your "breakaway cable" battery for your trailer brakes, and probably also has a +12vdc wire directly to the 7-blade connector which connects to your truck battery (will normally trickle charge from the truck). LifePO4 have a LOT less resistance so it would probably blow the truck fuse when you plugged in. I would personally install a new trailer breakaway kit that comes with a little battery and rewire it to use that instead. It can totally be done of course, I have a Victron Orion 24v-12v/70amp converter that is AMAZING, highly recommend, runs basically everything in an RV. I just wanted to stress the point that these are complicated systems and it is easy to overlook something.
I have been learning about this stuff a lot as well, building my second system as we speak, feel free to reach out to me anytime!

edit: Just watched more recent video, saw you added dual 24v-12v converters, posted a comment at that video!

[sreimert]

This is *exactly* what I was looking for! Thanks a million! But damn, running that 50A wire from the panel in the front back to the panel, etc. seems like the biggest PITA of the entire job!

[sagedunagan]

Being a newbie to this kind of stuff myself, you have saved me so much stress of deciding which system I need and how to do it . Thank you for this awesome information, I understand things much more clearly now .

[Timborooni]

Great video. Im in the planning stage of upgrading our caravan with all Victron gear which i have had in previous campers. I love your easy going nature and easy to understand instructions. Even here down under i understand it is what YOU needed for you not what we should all be doing! Great work.. Thanks.

[donpaul]

You are a breath of resh air, I have watched 100's of videos on Victron companenets trying to understand what I am going to get built, you dont cause overload of too much information, therefore for a old grey nomad it is easier to take you - thanks. I am not into this subject like others just want to know what I am to put in for a totally off grid, 2000w solar array with a Genset Honda 2000w & options of 240 main power at times in a truck overlander -appreciated

[akhenatn]

5:45 Hi, a question, it is ok that the negative pole in multiplus ii is missing a plate but positive has it??, i'm preparing to install my multiplus and just noticed that...

[mat]

nice work.
for your 12v, just get rid of 12 batteries completely, put in another 24v the same, parallel with the current one, and use a 24/12v converter. then eventually chuck in a 250/100 mppt and panels and done.

[melc]

Nice!...Thank you for taking the time to provide basically a step by step installation.

[hayden]

So I am getting ready to install the victron 2x 120 on my trailer. the only question I have not seen anyone talk about. Do you need to do anything special for the truck-trailer 7 pin connection. Does the setting in the victron just automatically work with the existing wiring for the 7 pin. Thanks for any answers

[sidcenteno]

I have a Montana and I was thinking about doing the same layout as yours. Do you think you can place a second 24v battery in front. I cant tell from the video. Thank you for the quick response.

[matthewknight]

I love victron charge controllers. When you get them be sure to oversize the charge controllers so that in winter time and the panels are stronger that you can get the extra charge the bigger controllers will allow. Also the also by oversizing the controllers they will last forever. Some people say its safe to over panel a system but its not good for dependability. A dc to dc victron charger is gonna help you a lot also. If you want super fast 120v charging add a 24 volt 50 amp powermax charger. They are a great addition to the 120v charging. Im a solar inverter battery fanatic and think you are doing great by the way

[kennethcollins]

so why did you go with 24v i missed it..

[sidcenteno]

I have a question, when you plug in your 7 pin to your tow vehicle woldnt that cause a problem since the tow vehicle battery is 12? Thank you for your time and consideration.

[richpetrelli]

Great video. Very informative. Quick question though. I’m gonna do the Multiplus 2 24vdc with the same battery you use, in my 2018 Forest River FR3 and will use a cabin on the rear passenger side for equipment and batteries. The original marine batteries are in a cabin right behind the passenger door. I’ll remove those batteries and put some terminal blocks in there for the positive wires and another for the negative wires. How am I gonna get to the lynx shunt that is in the new battery area almost 20ft away? Should I use a Smart Shunt instead and put it where the old batteries were in the front cabin on the neg terminal block? I don’t think I can use a Lynx Shunt because of its location with the Multiplus in the new rear bin. I also have to use an Orion 24-12vdc converter and run that under the rig to the old battery area to get 12vdc to the rig’s 12 volt appliances. Any help or ideas are appreciated!

[leehwhiz]

NFPA 1192 Standard on Recreational Vehicles is required to be followed by RVIA, as references to this code NFPA 58 Liquified Petroleum Gas and NFPA 70 National Electrical Code are included. There are a number of additional codes, standards, etc that are also referenced.

[leewhizhulbert]

Remember that according to code, the wires that you put the wire nuts on should been placed in a junction box. Additionally, as your RV appears to be a 5th wheel I would recommend that you get a Victron DC to DC charger. You can hook that into the 12 volt power from your truck to the 24 volt battery system to charge your 24 volt battery while your driving on the road.

[sidcenteno]

How did you extend the USB and the HDMI for the Gerbo? Where did you get it? Thank you again. Great rat video .

[dougwrobinson]

Nice system, I was wondering did you delete the original converter battery charger that came with the camper or did you keep it for charging those agm batteries? I have the 290RLS camper.

[Maguy]

Is AC in 240v split phase? How is it you have a L1 and a L2? I needed an auto transformer to generate the L2.