Battery BACKUP for Home - DIY Step by Step

Рет қаралды 500,710

Күн бұрын

DIY home battery backup using Victron Multiplus-II and SOK 48V Server Rack batteries.
Current Connected Website Affiliate Link: www.currentconnected.com/?ref...
Find More information for this project and others on my website: projectswithdave.com
Downloadable Parts Lists with Cost and Circuit Diagram - Link: drive.google.com/file/d/1dMR7...
Watch the split phase upgrade install here: • DIY Split Phase Batter...
System Components:
SOK Battery 100Ah 48v Server Rack Battery: www.currentconnected.com/prod...
Budget Version from Signature solar: signaturesolar.com/eg4-lifepo...
Victron 48v Multiplus-II Inverter Charger 3000va 120V: www.currentconnected.com/prod...
MegaFuse Holder + 2 Fuses (58V 125A): www.currentconnected.com/prod...
1/0 AWG Red + Black Pure Copper Battery/Inverter Cables (1.5 Ft Battery Parallel Connection): www.currentconnected.com/prod...
1/0 AWG Red + Black Pure Copper Battery/Inverter Cables (4 Ft Inverter Connection): www.currentconnected.com/prod...
1/0 Battery Cable Lugs 5/16": www.currentconnected.com/prod...
Fully Loaded 25kWh SOK 48v Server Rack Battery Kit - Bundle & Save: www.currentconnected.com/prod...
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Learn more about solar power and home backup on my website ProjectsWithDave.com: projectswithdave.com/
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Check out my other projects: projectswithdave.com/#projects
Recommended sources for Bifacial and Discounted Solar Panels: projectswithdave.com/solar-pa...
Solar & Off Grid Materials & Components: projectswithdave.com/components/
Recommend Tools For Solar: projectswithdave.com/tools/
Learn how to do your own DIY Solar System: projectswithdave.com/#edu-video
Sources for LiFePO4 batteries: projectswithdave.com/batteries/
Inverter Solutions: projectswithdave.com/inverters/
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For great prices on used and clearance solar panels use SanTan Solar: www.santansolar.com/product-c...
For large orders and pallet pricing fro SanTan, contact Alex (480-360-6203; or alexanderson@santansolar.com ) and mention EverydayDave for 5% off.
Best Value Source For Solar Panels and Batteries - Signature Solar: signaturesolar.com/shop-all/s...
Quality & Service Source for Batteries and Inverters- Current Connected: www.currentconnected.com/?ref...
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Disclaimers:
This video is for information purposes only, and does not constitute professional advice. Solar systems can and do involve dangerous electrical connections. If you do not have experience with electrical wiring, please seek professional support.
Affiliate information and disclaimers:
Links in description may be affiliate links, we may get paid if you purchase something through one of these links. This helps out our channel at no extra cost to you. Thank You!
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Timestamps:
00:00 Intro
00:45 Materials
04:59 Overview & Mounting
08:34 Sub Panel Wiring
09:58 Inverter AC Wiring
14:50 Battery Install
15:33 DC Wiring
22:11 48V SOK Battery Startup Procedure
25:22 Fridge Test
28:08 UPS Test
28:58 Miter Saw Test
29:54 Planer Test

Пікірлер: 564

@sicardmd Жыл бұрын

I stopped here for I had 30 minutes to "waste". Left with much gratitude for a smooth teaching style and a solid presentation. Thanks for the demo on the Temco crimper. I used your link and one is now on the way to my shop.

@ProjectsWithDave Жыл бұрын

Glad it was helpful!

@unacceptableone Жыл бұрын

Thanks for the no BS video. Just facts, no hype, actual tests.

@marcothehammer Жыл бұрын

When you pointed out the value of winding the wiring back and forth between studs in consideration of future modifications or improvements, I just HAD to hit the subscribe button! This alone is a very helpful suggestion.

@DavidMosby Жыл бұрын

I am not ready yet but sure appreciate your videos! I love how you have learned along the way.

@ReaL0RazZ Жыл бұрын

Thank you for the video! South Africa is currently in a national state of disaster because of rolling blackouts. Everyone is trying to get their hands on backup power systems. Your channel really provides us with a lot of much needed info on how these systems should be expected to work. Even though the electricity standards are different here in RSA it still helps.

@ProjectsWithDave Жыл бұрын

I'm glad it has been helpful for you.

@MichaelEricMenk Жыл бұрын

Victron "European" model supports being connected to 400V three phase TN and 230V three phase IT/TT grids. Connecting to a 230V from a 400V TN grid would pretty much the same as in the video, just higher voltage between N and L1.

@kavostat8130 10 ай бұрын

Hi there How much is all these units together??

@ProjectsWithDave 7 ай бұрын

You can get the circuit diagrams, parts list and cost on the projects page on my website: projectswithdave.com/battery-backup-for-home-diy/

@JR-kk6ce Жыл бұрын

Great video. I just have one caveat which I learned the hard way. For such emergency backup systems you should assume the worst case scenario and place the battery and all components at least two feet above the worst potential flood level. You should also include some type of overhead protection from such things like roof leaks. Finally, make it as easy to operate as possible, without any special procedures because when it hits the fan, you will be reacting at a basic primal level with few reasoning abilities.

@charlieodom9107 Жыл бұрын

If my house floods, then power is the least of my worries! I'd be looking at a biblical type event!

@petebra11 Жыл бұрын

@@charlieodom9107 your whole house could go up in flames if the cells get wet. So you don't necessarily need a flood to warrant protecting your cells from water; your house is piped with it, it falls from the sky, animals urinate it, etc.

@sovereignmedia1885 Жыл бұрын

Use an IP65 electrical cabinet

@sovereignmedia1885 Жыл бұрын

@@charlieodom9107 yup. I you put it where the water floods. Anything else it protects well enough. I find these wood based installation highly unprofessional.

@optionstrader9637 Жыл бұрын

@@petebra11 lfp batteries(like he shows) won't burst into flames like that.. nmc and lipo however are way more reactive

@martinc6273 Жыл бұрын

Great video Dave! Well organized and presented content.

@chadmarkley Жыл бұрын

Keep making these!!! Funny, my favorite and smartest part is when you build that little "pop out" box that bridges the wiring and allows you to mount the outlet box at the proper alignment for the conduit. SMART DUDEEEEEE

@ProjectsWithDave Жыл бұрын

Thanks! It's the little things....

@johnb4717 Жыл бұрын

Another great presentation. Thanks. You are definitely old-school: aligning your screw-heads. Great to see teaching of the little things, in the trades.

@nialldaly7108 Жыл бұрын

Funny you should say that. I live in Ireland but worked for an American company here in the 80's and 90's "Wabco Westinghouse" which was owned by Union Switch and Signal and we always alligned the slots on the screw terminals Vertitally on our wiring of signal and track transformers and such. Reason I was told was not to trap moistre in the slots.

@edwardmckee7626 3 ай бұрын

Subscribed. Love the video. Clear, to the point, you put a lot of care into planning out the system, and all with a great demeanor and presentation.

@diySolarPowerFunWithRay Жыл бұрын

Love the shelf bracket idea. Awesome tutorial!

@jeff95050 Жыл бұрын

Concerned about the scene where you open the battery box and poke around inside. I saw a ring on your finger. With the kind of energy stored in those cells, any inadvertent cross contact done by your ring would likely result in the ring welding to the source and your finger being burned off. This would leave you with a mess and people nicknaming you "Stumpy". Always remove any and all bling before ever opening a energy source no matter what you think of it's on or not, hot or cold or not. It's always hot.

@ProjectsWithDave Жыл бұрын

Great suggestion, thanks!

@trollking202 Жыл бұрын

Also keys or watches

@kuzinit2374 11 ай бұрын

I suggest when you start buying your system you start out buying a hybrid wind / solar charge controller, and a charger/ inverter, so when you upgrade you don’t need to buy new components, now you can max out your solar panels and batteries for going off grid but still have the option to charge your batteries off the grid , or just help keep them topped off for longer life , keep in mind , when it is windy , wind generators work better then solar , but on no wind Days Solar works better , and it not only the wind you need to take into consideration, it’s the clouds also

@lexicase8805 8 ай бұрын

Could probably wear chainmaille gloves for protection 😂

@SVThailand 7 ай бұрын

It's amazing how many people I have met in my life that don't understand how dangerous rings are at work. If you're working around the house or at work, the last thing you should have on your fingers is a ring. If you do, you're either stupid or a cuck. I saw a man at Boeing field and airport in Seattle. Working on an airplane and a fuel truck. Backed up underneath the wing and knock the ladder from underneath him. He grabbed on to the engine pod where he was and I saw him fall but what I didn't realize until I got up close to him was it. When he fell, his ring had become caught on the edge of the engine pod and it took his finger and the tendon connected to his finger all the way up to his elbow out he was partially the gloved. That's what they call it when you the skin around. Your fingers comes off on your hand. All because he had a stupid wedding ring on

@artysanmobile 10 ай бұрын

Kudos for the torque wrench. This is a critical connection.

@ookinekko Жыл бұрын

Great video! You consistently meet expectations!

@kc4cvh Жыл бұрын

I designed and built a similar system of six GC-2 batteries charged by a 1 kW photovoltaic array and a 6 kW split-phase inverter. I was able to make substantial savings by winding my own transformers for the low-frequency inverter. The lead-acid cells were also chosen as a low-cost stopgap, the battery bus sags below inverter cutout voltage if the current exceeds 0.6C, so they're to be upgraded when the lead is dead.

@arnecarlsson9740 Жыл бұрын

Thanks Dave! Another great DIY video! Learned the difference between ANL and CNN fuses, new to me!

@ProjectsWithDave Жыл бұрын

Yea, there are a lot of nuances when it comes to fuses. It requires some research for each situation.

@LiquidTurbo Жыл бұрын

It must feel really good to have this level of self-sufficiency. Awesome video and I always learn something watching your vids.

@ProjectsWithDave Жыл бұрын

It is nice not to be worried about the price of electricity going up or the power going out. Thanks for watching!

@jacquesdutron9954 Жыл бұрын

Thank you so much Dave for all your efforts and sharing them with us.

@ProjectsWithDave Жыл бұрын

Thanks for the encouragement!

@markbrock8662 Жыл бұрын

Thanks for taking the time to post this great video!

@ProjectsWithDave Жыл бұрын

Glad it was helpful!

@frankthies221 Жыл бұрын

Thanks for the project Dave. Love it!

@ProjectsWithDave Жыл бұрын

Glad you like it!

@jonathan-657 Жыл бұрын

Great video as always. Makes me even more excited to install my Solark system! Now I'm gonna need to buy some of those SOK batteries.

@ProjectsWithDave Жыл бұрын

Go for it! They are working great!

@ayandandlovu7803 Жыл бұрын

Outstanding backup solution ever.

@robertmyers4155 9 ай бұрын

Thank you for your video or videos. They are very educational! As a DIY’r I can not learn enough! I am reaping my rewards for my efforts from guys like you! God bless you and God bless America !

@ProjectsWithDave 9 ай бұрын

Thanks! I'm glad it's been helpful for you. My goal is to learn as much as I can and share what I learn with the community, It's nice to know it's valued.

@robbie31580 Жыл бұрын

This is exactly the video I am looking for! Thank you!

@ProjectsWithDave Жыл бұрын

Glad it was helpful!

@raazindia2321 Жыл бұрын

Hello, I am from India and working as solar rooftop designer. Your video help me a lots.

@user-uc9rz7oy8p 10 ай бұрын

This gentlemen has a great setup.

@peterking1134 Жыл бұрын

A most excellent presentation!

@AveRage_Joe Жыл бұрын

Subscribed once I heard you say to align all the outlet box faceplate screws the same direction!! THAT IS A MUST!!!💥🤘

@jaysway007 11 күн бұрын

Excellent video! My every curiosity was satisfied with excellent setup instructions, and tests. Well played sirrrr ! Keep up the GREAT work ! 😎👍💯

@ProjectsWithDave 10 күн бұрын

Thank you very much!

@teet7918 Жыл бұрын

Thanks, Dave, great video again!

@offgridwanabe Жыл бұрын

Thanks Dave, Don't forget the sub panels are never bonded and should be checked to see if there is continuity between the neutral and the ground as there should be none.

@ProjectsWithDave Жыл бұрын

Correct, I didn't detail that in the video, but I confirmed by continuity check that the panel ground and neutral were not connected.

@offgridwanabe Жыл бұрын

@@ProjectsWithDave I only mentioned because it seems there are quite a few panels that are bonded.

@larrybell4599 9 ай бұрын

This is a great backup system. I really enjoyed your demonstration.

@ProjectsWithDave 9 ай бұрын

Glad it was helpful!

@patricknelson Жыл бұрын

The cost efficiency and the wise application of user-administered components here is outstanding, you really know your stuff. Sadly I’m not quite so practical working with electrical wiring like this at all (I’m just a regular guy researching home battery backup). This sort of approach is a great way to break away from proprietary vendor specific products (which are also far more expensive). Is this sort of setup accomplishable with the help of an electrician, with me there to simply fund everything? I wonder about support as well. I suppose it would behoove the owner to at least get past the initial learning curve to make the most out of a system like this (even if they had professional help to prevent them from making dumb mistakes).

@ProjectsWithDave Жыл бұрын

You should be able to find an electrician to help you assemble your system. Current Connected (link in description) is a great source to get your materials from because you can tell them what you want to do and they will pre-program the units for you.

@ehudgavron9086 11 ай бұрын

Hey, Current Dave, good job on having Past Dave set things up right for Future Dave, now you. The "extra wire" is called a "service loop" because it's typically set up as a loop to allow there to only be one splice to move it, not two. You may see these on utility poles as a run of fiber-optic or copper cable going back and forth between two poles to add length. If there's a fault, the extra material from the service loop is used -- one splice -- and the segment with the fault removed. If there wasn't a service loop it would require one splice to connect to the known-good part and one to extend to the service. With electrical it's not that big of a deal but with 640 fiber-optic strands it's a ***. It's convenient you can put all your stuff next to the load panel. Mine's outside the house, which presents its own challenges. Also in the US regionalism means some of us call it a "load panel" (nobody I know does this), others a "breaker box", and if you read the NEC, "panel board." Most techs I work with call it "breaker box." You did say "6-3" but didn't elaborate. Perhaps some of your newer viewers might be better educated if you explained that it means 6-gauge 3-wire cable, good for one phase up to 55A, voltage whatever residential you like. If you want split-phase (or "two leg") you'll want 6-4 to get the two phases (red+black for power, white for neutral, green for ground.) One other comment - 1/0AWG isn't a whole lot of headroom for "future growth". Its ampacity is a bit above 60A or just a bit about 6AWG. If you're sticking with single phase (110-120VAC) and ran 6-3 to the breaker box... you can save the $2/ft for 1/0 and just do 6AWG. Most houses in north America are wired at up to 200A (two phase) so 6AWG will carry half that load just fine. Also, while you're supposed to put the inverter 10cm away from other devices, it really depends on airflow... so in a basement with no airflow 10c may not be enough. On a wall in a hallway or in an HVAC-cooled room it's more than enough. Temp it with a laser tstat when off, temp it when on, and temp it at max perf and if you see it get hot, move it or put a fan on it. E

@ProjectsWithDave 11 ай бұрын

Thanks for the detailed feedback. I'll try and remember my new terminology... "service loop" since I seem to like to use it a lot. : )

@marktheunitedstatescitezen185 Жыл бұрын

Very good on the detail on labeling the wires !

@ProjectsWithDave Жыл бұрын

Thanks!

@xyvyx Жыл бұрын

Hey Dave, great video. I'm in the process of doing something similar at home. I chose an MPP LV-MK series inverter because of it's "double conversion" capability, but it's possible the Victron and others can do the same. This is less efficient, but results in 0ms / instantaneous transfer time when the grid power goes out. One thing I researched a fair amount was battery chemistry and optimal consumption behavior. From what I gathered, the lifespan of these SOK and EG4 lithium is way better than old-school lead acid / gel / AGM batteries. BUT... LiFePo4 don't like to sit idle at a fully-charged state. It reduces their life compared to daily charge/discharge cycles common to solar usage. That's why I chose gel batteries (Renogy 100AH deep cycle hybrid gel, valve-regulated/sealed lead acid chonkers). I would have tried silicate-salt, but they're really heavy and would have been at least $270 to ship. That and there isn't a whole lot of info about them.

@ProjectsWithDave Жыл бұрын

Every battery has an optimal application and the only way to make the best decision for your application is to take the path you're on and do do a lot of research. Some more information to consider; with a good inverter, you can control the capacity level of your cells to maximize their lifespan. For instance you can make the max charge point at 60% or 80% to minimize the dendrite growth. Either way the LiFePo4 chemistry is the best for longevity if you go Lithium.

@faqirm6317 Жыл бұрын

Great video, I like your professional way of doing electric install.

@ProjectsWithDave Жыл бұрын

Thanks! 👍

@BMWBoyeeM3 Жыл бұрын

Thanks a lot of the video. I would really be interested to see something similar with a peak shaving system.

@derekleclair8787 Жыл бұрын

Another great one! Thank you for this. I was thinking about doing the same!

@ProjectsWithDave Жыл бұрын

Go for it! It works even better than I anticipated. I love it!

@philippserrin8268 Жыл бұрын

You did a really nice job on this video. Thanks.

@ProjectsWithDave Жыл бұрын

I appreciate that!

@ToddDesiato Жыл бұрын

Dave! Excellent job. I'll refer customers who ask me "How to...", to view this video. Thank you for following NEC.

@ProjectsWithDave Жыл бұрын

Thanks!

@sidcoelectric Жыл бұрын

Great directional video! You are definitely not a novice installer. Neutral or negative wire is the “captain of the ship” first one on and last one off.

@ProjectsWithDave Жыл бұрын

Thanks!

@smjones4238 Жыл бұрын

Voltage droop doesn't happen until the wire is tasked to carry more current than it is supposed to carry. Watch your meters while the load goes up. I saw 104volts when you made one pass that connected with the log well. Michael in Colorado.

@ProjectsWithDave Жыл бұрын

Yes, that's pretty close to the minimum I measured.

@obx_foiler Жыл бұрын

Great video Dave! I'm starting from scratch and this is pretty close to what I'm looking for. Primarily looking for standby backup power for critical circuits. I have considered solar but we simply have too many large trees to make it cost effective. Is it possible to have the UPS setup but be able to supplement battery charging with a gas generator when there are longer outages? I'm not clear that using a transfer switch on the multiplus a/c input would give the desired result? Or would it? Would the excess generator power charge the batteries? Are there other Victron models (or other brands) with better a/c input connections, not the push-in? Maybe the Victron Quattro Inverter is what I'd want? Thanks Tony

@ProjectsWithDave Жыл бұрын

Thanks! It can take generator input to charge the batteries, no problem. There are several other options on the market. I will demonstrate a few in an upcoming video.

@bowstobourbon Жыл бұрын

absolutely fantastic, i want to do all that!

@RuinaGreenEnergy-SolarPVSystem 10 ай бұрын

you have done good job for the installation, ❤

@user-ko3kt3qs3o 3 ай бұрын

Thanks Dave for the response.

@ProjectsWithDave 3 ай бұрын

No problem. : )

@bradmesserle999 11 ай бұрын

Fridges now days are very efficient,. Nice setup.

@surfreadjumpsleep 10 ай бұрын

great video. You or others might want to not wear a ring while doing this sort of work. Thanks for putting this together.

@ProjectsWithDave 10 ай бұрын

Glad it was helpful!

@sellC1964 Жыл бұрын

Remove wedding ring when working with electricity! Neat set up!

@ProjectsWithDave Жыл бұрын

Thanks!

@chrisrobinson6288 Жыл бұрын

Great video thank you for posting.

@MrBruce0777 Жыл бұрын

Great video thanks for sharing. Most video's do not cover the breaker boxes to inverter part of the solar deal...In time shortly I hope to start this aspect of my solar deal packup. .

@ProjectsWithDave Жыл бұрын

Glad it was helpful!

@NateKK7 Жыл бұрын

I might use this for my network and server rack instead of a factory ups because i cant get 240 to my rack and the victron specs fit the bill I will probably still have a smaller ups because the switch from battery to inverter is quicker but it should still work.

@tomnorman5461 Жыл бұрын

Instead of bending your length of hook-up wire 11:00 I'd just put a 'loop' in the wire, it's easier to do, and handy when using an Amp Probe for current readings. .

@anthonyspeters7203 Жыл бұрын

Am so glad I've found your channel, covering standby power, I've been looking @doing this in different way to provide 24hr off peak lectricity charge batteries @night 1am-8am then use batteries to run bungalow day/evening! So l can have 24hr off peak should save bag of money with energy prices rising so much!🤗😎

@ProjectsWithDave Жыл бұрын

Glad I could help!

@texaswalkerwoman9875 Жыл бұрын

Great video thank you Dave I have learned so much from you. I do have a question can I hook the battery system up to my system since I feed it back to the power grid. Sorry if I am not using the correct thermology still learning.

@ProjectsWithDave Жыл бұрын

Yes, these batteries can be connected to grid-tie systems as long as the inverter is designed to manage the power.

@KRYTEN451 Жыл бұрын

This is close to what I am planning. One difference is to drive 240V split. So with current Victron components I'd need 2 MP II/Quattro, or an MP II/Quattro + Victron autotransformer... OR wait until Victron comes out with a single unit that supports 240 split.

@whiskeyandagyro3135 11 ай бұрын

you'll be able to extend the fridge power draw if you set it right above freezing and cutting the power to it off and on. a fridge can keep cold for long periods of time.

@THEGHOSTOGJAYSPEED Жыл бұрын

great video you did a good job

@synthwave7 Жыл бұрын

Nice job. Two things -1. the cable lengths from the battery to the Inverter should be as short as possible and the cable lengths the same length - preferably not coiled. 2. The fuse should be less than 12 inches from the positive side of the battery - best practice. There are lots of discussions about this on the web.

@ProjectsWithDave Жыл бұрын

Thanks. 1) The cables should be as short as possible, however, I plan to make changes later so I didn't do that in this case. Series cables don't need to be the same length and coils in DC lines are not a concern. 2. For the fuse, in this case, there is not a significant difference with the 1/0 awg cable I used and the short distance between the battery and the inverter. Thanks for the feedback!

@Frey808 Жыл бұрын

This is by far the best explanation I've seen! Thank you! Can this system be used for residential peak shaving? 🤔

@ProjectsWithDave Жыл бұрын

I have not tried to use the system for that purpose since we don't have variable rates where I live. However, a quick search on the internet shows people are using similar setups with the Multiplus II for peak shaving. You would likely need to power something more substantial than emergency circuits to take advantage of the power management.

@johncarr123 Жыл бұрын

Very cool setup. I really like the new ECOFlow systems with there integrated power distribution system. It does cost more but I can use the ECOFlow batteries to power my RV or any other application for remote power.

@ProjectsWithDave Жыл бұрын

Yes, the all-in-one options are getting very powerful.

@loucinci3922 Жыл бұрын

Very nice demo. Very cool. Thank for sharing

@ProjectsWithDave Жыл бұрын

Thanks for watching!

@MrMinnesota99 Жыл бұрын

Thanks for the great content. It's nice to see that it handled the planer load, (what's the ambient temp in the inverter room) would be great to see more load testing and see how it compares to the datasheet ratings. I do have a request, could you measure the no load idle current of the inverter? According to the Victron community forums, it seems to be common to get a unit that draws 60%-80% more than the datasheet rating. Victron's response has been, performance can vary unit to unit, and there is no fix besides replacement.

@ProjectsWithDave Жыл бұрын

The ambient temperature at the time of testing was about 65deg F. I get about 9W at idle. It has the lowest idle consumption of anything I've tested so far.

@forthecrown8952 Жыл бұрын

Awesome job with this step by step setup. Very neatly put together and testing procedures. Got a sub from me. Looking forward to your next video.

@ProjectsWithDave Жыл бұрын

Awesome, thank you!

@svegetax Жыл бұрын

I hope that dewalt has a 220 option. It would get a lot less bogged down and never go over 15 amp because it's not starving. Good vid on the entire setup.

@ProjectsWithDave Жыл бұрын

Thanks! Yes, 220 would help the planer quite a bit.

@diySolarPowerFunWithRay 11 ай бұрын

Thanks Dave! Can I ask what program to use to show your calculations / animations?

@ProjectsWithDave 11 ай бұрын

I just build my graphs in Excel and PowerPoint and export the images.

@albion50258 3 ай бұрын

Great video..I am interested in how you get this setup to only charge batteries from grid at certain times of day?

@gravelydon7072 Жыл бұрын

Another way to take care of the inrush of the inverter when it is first setup is to use a variable DC power supply to bring the Voltage up on the input with the batteries turned off. Serves the same as the precharge resistor in that it allows a control over the current the capacitors draw. That is how I do it on my 6K inverters.

@ProjectsWithDave Жыл бұрын

Thanks for the tip!

@M35a2guy Жыл бұрын

I like that idea !!!!

@hosukjeong519 Жыл бұрын

It's greate video. I was looking for this. Thanks.

@ProjectsWithDave Жыл бұрын

Glad it was helpful!

@solarforfuture Жыл бұрын

agreed... dropped a dozen of used solar panels on the roof... $100 mppt contol... runs the house on a 3000 all in one inverter... charges at night if needed. but no backfeed.

@banditdog1338 Жыл бұрын

Dave good job I am thinking that is a project I need to do I have an oxygen concentrator that needs to run 24 hours. Fortunately we have not experienced any prolonged outages here but the system you have setup would make me rest easier at night.

@ProjectsWithDave Жыл бұрын

Yes, the UPS function worked great.

@marcfruchtman9473 Жыл бұрын

Great review. You mention the capability to take 20 Amps of a generator and boost it another 25 amps... But what about the opposite? Can it go directly from solar (without battery) @30 amps and then boost it to 40 amps as needed from the grid or a generator if needed to drive a heavier load? Glad to see that the fuse holder has a cover! However, I am not a big fan of the "push in " connection method that the MultiPlus-II uses for the wiring for the AC connection. I don't mind the convenience, but I would prefer something that I can tighten down to make sure that there is no chance of something pulling out.

@ProjectsWithDave Жыл бұрын

This unit is an inverter/battery charge controller. It does not have solar capability. With Victron that is a separate unit. The connectors aren't my favorite either, but to be fair if I set them properly I can't pull them out. That being said I also preferer the control of a lug connector.

@paul3426 Жыл бұрын

Very nice presentation....I don't usually reply. But this time, you deserve it. A couple of suggestions. You might talk a little about battery chemistry and the advantages of LiFe PO4 batteries. And you might also talk about how a solar array could be added to slow battery depletion.

@ProjectsWithDave Жыл бұрын

Thanks for the tips!

@M35a2guy Жыл бұрын

Great video! And thank you. How are you managing your ground relays? Turning it on or off? I have something very similar to this but using two multis configured in split phase. My neutral and ground bond is at the main panel. My critical load panel will not have a neutral/ ground bond on its own but will connect net/ground at the main load center. In theory I would think you would want the PE lug on the case of the inverter to be run to the main box and bonded there?

@ProjectsWithDave Жыл бұрын

The load center has it's own independent ground connection. For the neutral, if you look at the circuit diagram for the Multiplus II, it shows a neutral/ground bond relay that switches on when the shore power is cut.

@ranjanty Жыл бұрын

My main panel is located in my bedroom and I don't have room to install equipment needed to do this setup. I do have a small 1k watt solar system. Unfortunately I have to use extension cords when I need to run refrigerator or anything else.

@tribalncgaming1091 8 ай бұрын

I did this for my RV .. 3kw hybrid all in one POWmr, 468.00 + 2x 200ah lifep04 (469.00 ea) and about 90.00 worth of breakers and 8awg cable and connectors . 20amp power outlet .. and 1kw of solar panels 24v system .. under 2200 for the entire system

@jgm3796 Жыл бұрын

Awesome videos! Slowly going through all them. One question regarding the yellow romex that backfeeds the subpanel via the 50 amp breaker, isn't 12 guage too small for that?

@ProjectsWithDave Жыл бұрын

Thanks! Glad it's been helpful. I'm using 6AWG for the 50A breaker. kzfaq.info/get/bejne/eOB9dLpp0L2Uc4k.html

@eugenedeleon448 Жыл бұрын

Excellent video, thank you. If I had a enphase micro inverter grid tie solar system, would this diy video tutorial work ?

@ProjectsWithDave Жыл бұрын

Yes, this system works independently from your solar system. It works even without solar. I am working on a video with some hybrid inverters that can AC/couple with systems like Enphase to charge the batteries from solar. Stay tuned.

@freedomisfromtruth Жыл бұрын

This seems to be the way to go, looks like this has an auto transfer switch. But seems like if your powering, lets say fridge outlet, doesnt the inverter powered outlet now backfeed in the main fuse panel through its fridge breakers unless you manually turn those off.

@ProjectsWithDave Жыл бұрын

No, those circuits are isolated from the rest of the house. Like you said, there is an internal transfer switch that separates that entire sub panel and runs it off-grid.

@GivenHanjoba Ай бұрын

I like your explanation good job

@5885ronny Жыл бұрын

Hallo danke fürs Video 👌👍

@carlosschmidt6035 Жыл бұрын

Great Video !!

@ProjectsWithDave Жыл бұрын

Thanks!

@tanaimarin Жыл бұрын

Thanks for the great video. What is the transfer switch you arr using? I'm building a similar system and want to add a transfer switch to have the chance to use a gas generator to feed the charger in case of long outages. Thanks!

@ProjectsWithDave Жыл бұрын

Thanks! Here are two options similar to mine: TCA1006DR Outdoor Transfer Panel - 100A and 60A Generator: amzn.to/3FWIuI1 TCA1006D Indoor Panel/Link Transfer Panel: www.amazon.com/gp/product/B000HRWGPS/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

@Scat.original Жыл бұрын

what was used to track the hours, watts and battery %, Thanks for a great video

@ProjectsWithDave Жыл бұрын

The batteries have self monitoring for the %capacity and I used a watt meter at the fridge. The watt meter is in the tools section of the downloadable parts list. Here is a link: drive.google.com/file/d/1dMR7HIPvhcqb2EtShifwQy49ZrQrgJT6/view?usp=sharing

@ssoffshore5111 Жыл бұрын

Dave, Your batteries would get more even distribution if you used a busbar and had equal length cables running to each battery from the busbar. It probably doesn't seem like there's much of a difference as it's currently configured, but I suspect it will add up over time. Also, you might want to build some kind of a protective cage around those batteries if you're going to be parking cars around them. You never know what can happen... BTW, no link to the fuse(s)? ;)

@ProjectsWithDave Жыл бұрын

I linked to a Megafuse instead of the CNN fuse since that's what they stock on Current Connected's website. Makes it easier to order everything from one site. Or you can get the CNN fuse here: amzn.to/3SYhpIJ And a fuse holder here: amzn.to/3yKdves

@deang5622 Жыл бұрын

"even more distribution"? What does that even mean? Equal length cables? LoL...oh dear.

@ssoffshore5111 Жыл бұрын

@@deang5622 No, I said "more even distribution". And yes, current will take the path of least resistance, so if the resistance isn't even, the distribution to the batteries or to load won't be either.

@xyvyx Жыл бұрын

in the case here, I think he could even current draw by keeping most of his wiring intact, but moving the positive inverter supply to the other battery. With 3+ batteries, though, I think you'd need a bus bar.

@hiegear Жыл бұрын

Great video. My electrical engineer father in-law will enjoy watching when he visits during the holidays. I see you have solar too. Can I add this system into my solar set up? Currently have a 12kW system tied to the grid. What a good resource to find out more?

@ProjectsWithDave Жыл бұрын

My solar system is grid-tie. This backup system can run completely independent of your solar setup. This is the video of my original grid-tie install: kzfaq.info/get/bejne/ld5xadSA3NS9koE.html

@pltspemula Жыл бұрын

Great Master!

@info411 10 ай бұрын

Thanks Dave for a great and detailed presentation. I just have one question you covered very quickly 7:00 , in the event of lost power and battery gets low, how would I go about connecting electric generator from subpanel to the UPS panel to charge the battery.

@ProjectsWithDave 10 ай бұрын

In my case, I have a transfer switch that switches the AC input for the sub panel between Line in and Generator in. If the power has been out for a few days and I want to recharge the batteries, I can start my generator and plug it into the outdoor generator plug that is connected to the transfer switch. Then I can flip the transfer switch and the sub panel and inverter AC in will see power again and start to charge the batteries. If you have a small generator, the inverter has the ability to limit the input load in the settings so as not to overload the generator. Hope that helps. You can see another way to wire it more directly from this split phase example: kzfaq.info/get/bejne/n9Z8hbGY0brImJs.html

@enamsatuu8988 Жыл бұрын

Thank you...

@hardymichael533 8 ай бұрын

Great idea EMP proof for your house

@jfraz6246 Жыл бұрын

This was a well done video.

@ProjectsWithDave Жыл бұрын

Thanks!

@jfraz6246 Жыл бұрын

@@ProjectsWithDave if you were in Chesapeake Va area, id be coming by to pick your brain haha. Did you need to get this inspected?

@jasonbroom7147 Жыл бұрын

I tried to click "Like" on this video about 6 different times, only to find out I had already done so. :)

@matthewknight5641 Жыл бұрын

Ive built a couple batteries for my off grid home. I used the eve280k cells this last time and nissan leaf modules the first time. Both my batteries have much more capacity than those server rack batteries qnd i have much nicer more capable bms. The nice thing about your server rack batteries are the ease of install.

@ProjectsWithDave Жыл бұрын

I've considered building my own batteries just for fun. But it's hard to justify with what's available off the shelf these days.

@matthewknight5641 Жыл бұрын

@@ProjectsWithDave I like the battery and solar build stuff as a hobby and since finding out about having stage 4 cancer it's helped keep my mind off bad stuff. I'd have probably bought the server rack batteries but they are kinda an expensive way to get 30 kw or so of power storage compared to building your own. I like the look and convenience of the server rack stuff tho.

@jedics1 Жыл бұрын

3kw solar/10kw batteries is the perfectly proportioned starting point from my experience, its even capable of running a small split system Ac all day and throughout the night depending on your location. There are far cheaper solutions than the Victron for a budget system unless you want to run a mitre saw which a cheaper inverter might not be able to handle the large start up current of.

@deang5622 Жыл бұрын

They are NOT 10kW batteries! They are 10kWh batteries. The video producer even got the units right, so why can't you?

@jedics1 Жыл бұрын

@@deang5622 yawn

@jake-mv5oi Жыл бұрын

I like this setup a lot. I may just build a system like this that's portable so I can plug into my generator inlet or take it with me. Seems much cheaper to expand than the all in one's. I could probably even use it to power a 120v welder completely silently.

@ProjectsWithDave Жыл бұрын

The Victron inverter in this setup has a fairly loud fan when it is under high loads, so not completely silent.

@jake-mv5oi Жыл бұрын

@@ProjectsWithDave quieter than a generator though, I bet.

@ProjectsWithDave Жыл бұрын

yes

@diySolarPowerFunWithRay Жыл бұрын

Thanks Dave, it would be awesome if this system could backfeed the grid once the batteries are fully charged.

@ProjectsWithDave Жыл бұрын

In my case, I just use my grid tie system for back feeding.

@diySolarPowerFunWithRay Жыл бұрын

@Projects With Everyday Dave cool, that makes a lot of sense, do you have a way for your existing solar array to charge these batteries in case of a longer outage?

@ProjectsWithDave Жыл бұрын

Not yet. I'm working on an AC coupled solution with a Sungold inverter, but I haven't had a chance to set that up yet.

@willscheidegger4115 Жыл бұрын

Great video. One thing I did not understand: If the grid goes down (and not you switching the breakers) then your AC-side of the inverter is still physically connected to the grid, isn't it? I did not see an automatic transfer switch in your setup. Or is that built into the Victron inverter?

@ProjectsWithDave Жыл бұрын

It's built in.

@carlossantini Жыл бұрын

Can you expand your installation to a split phase setup? If you do, can you add a manual transfer switch (double throw) to be able to disconnect the subpanel from the inverters to have energy on the loads in the event the inverters fail. Would really like to see what is the proper procedure for the neutrals and grounds with a transfer switch in there. Thank you for the channel.

@ProjectsWithDave Жыл бұрын

I have a version with a transfer switch and dual phase coming out in a couple of weeks.

@seymourpro6097 Жыл бұрын

If you have ONLY refrigeration loads then look for a means of running the power for, say, 15 minutes in every hour. while checking that the fridges remain cold enough it means that the self consumption of the inverter can be off for 75% of the time, giving some added power efficiency and hence run time.