Very nice. Remember to protect the wire reduction with a fuse at the point where you have the reduction

Pretty awesome man! Nice work!

That's awesome. If your house is well insulated and don't live in a mansion, some version of this is probably all you need. Brilliant.

That's a very great idea for old ev batteries. Kudos to the programmer, that's how open source works =)

Thanks for sharing this, its suddenly a lot more attractive to do a battery upgrade in older leafs when the old battery can be re-used as is. Much love!

I start using Nissan leaf battery for my solar 48-volt system since 2014, you know what? 3 years ago, I bought 2 used Nissan leaf battery and dissembled them to built 16 - 48 volt stack battery bank and now this concept that is wonderful, I no longer need to dissemble. All I need now the inverter will work with this concept, my Growatt have few years on it, its time to looking at the replacement and new idea to get free energy from the sun, my current system is 2 Growatt 5k inverter, 16 Nissan leaf̣ (48volt stack), 10KA industrial transformer to convert 230V into 110V. You are right used Nissan leaf battery are not expensive like other life4 battery sell by some solar outfit

For the precharge resistor and that stuff you should use a cable, something like a 7G1.5 and terminate it inside the box, also why not use a microcontroller with a few relays for the startup sequence? One last thing, put a fuse in the junction block ~32A and maybe protect the 10 mm² HV wires a little better. Love this kind of projects, hope it keeps getting better

Well done, this provides an excellent second life for degraded Leaf battery pack after pack in car is upgraded. 😎 Figuring out how to make use of the Nissan electronics is so much better than spending hours dismantling a pack and then configuring a 48 volt pack. ☮️

Awesome stuff.. Thanks Dala for contributing to the world the way you do.

Dude, I am adding you to "My Hero's" list!!! This is outstanding work! You've pretty much solved the issue I have for my enormous project!!!

amazing setup, Dala! Fantastic work - thank you for sharing. I'm hoping to have a similar setup in my barn one day. Thanks for the inspiration!

A bit more complicated than I thought but still very doable. Thank you for your work.

Came to your channel when I heard about your gracious offering to make your canbus/leaf battery swap open source and then saw this gem...very 😎!

Dala the GREAT! 🧙‍♂️

Thank you Dala for sharing your power storage solutions.

Ever since I saw the home batteries made from Leaf cells I wondered why they did not take the high voltage out and use it like you did and now with high voltage MPPT built in chargers it will be even easier. Congrats.

Thanks Dala, this is the kind of content I’ve subscribed for. To be able to use the car battery “as is” without messing with it, use the original BMS plus the sealed box should be really useful.

Very cool stuff! Next you got to connect your Leaf direct to that inverter via DC to charge and discharge. Defeat pack to ground current leakage test module in your Leaf and you should be good to go.

The can board translator is the missing piece I have needed for years thank you

Just awesome, simple and eco-friendly way to re-use car battery. Great inspiration!

On se mestari tekemään näitä. Tuo lähestymistapa on oikea. Vähemmän purkua, vähemmän kaikkea turhaa työtä. Uusien johtojen teko on paljon helpompaa kuin akun purku. Tuolla voi säästää ostosähkössä paljon. Hyvää työtä!

Excellent job on figuring this out. Been curious what to do with my Leaf when i get a Aptera to replace it.

This looks easier then I was expecting. The trick will be having a compatible inverter. Now I'm keen to see other expand on this work with demonstrations for other inverters. Thanks for posting Dala. Well done.

Great stuff again! I’ve been looking for a solution for a while, but most involve rearranging the cells - I even found a custom made BMS with all the connectors but it is only for the 24 kWh LEAF. This solution is much cleaner and universal!

Keep adding inverters, Dala! Ones you've already verified don't seem to be available in the US market. Would love to see you get the SMA Sunny Boy Storage series (SMA Sunspec Modbus) to work!

Hi well done that's a great work but i just wanna mention to you not to forget the wiring size for AC and DC, the fuse, isolation switch, and SPD in case of lightening, also draw a digram it will help. Thanks

This is amazing! Really cool, also nice to see someone from Scandinavia doing stuff like this! :D

You are so lucky to not be over regulated with nanny state rules there. Well done

My Nissan Leaf battery waited 1.5 years in my garage for something like this. Thanks Dala, great job 👍💡👍 I also have 30kWh, in the same places rust began to get to it 😆😆😆

Very cool! If a person has the technical skills, this is a great, inexpensive option. EV batteries which have lost their resiliency and peak capacity for use in a vehicle can still be used for many years in the less demanding environment of home solar.

Nice… adding to my todo list

Nearly six minutes of fantastic nerdery, custom wiring, OSS, and tinkery and then smash cut to 5:53 This is a true plug and play solution. 😂 Fantastic work. I'd love to do this.

Will follow your update. So impressed hope to be able to install a setup like yours in the near future. So great full.

I was very confused by the simplicity of this ("just plug the DC into the inverter") because I'm so used to every inverter being @ 48v. Took a while to dig up that the Fornius is a HV DC inverter, using 150v - 455v for the battery connection side.

This is excellent, thank you for sharing your project. I have been toying with the idea of building a backup power system because the grid is so poor here and I work remote. This looks exactly like what I need.

Great information, thanks for posting. Looking forward to future videos

I've wondered for some time now, if the market would not have reached a point by now where you can buy and assemble a modular system, consisting (in very general terms) of the following components: * A standard inverter/control box that would do the power conversion, interface with any grid control device, etc. * A battery specific interface box, that would convert the batteries' voltage/current/communication lines to standard values/protocols that could interface with the inverter/control box. * A used EV traction battery So, in your situation you'd buy the inverter control box, a "Nissan Leaf" specific interface box, and you'd have the Nissan Leaf battery. Someone else, who may have a BMW i3 battery available, would buy the same inverter/control box and "BMW i3" specific interface box, and be in business. Of course, this would have to made in large numbers to be affordable, and the legal and safety stuff of trying to commercially sell something like this would be a nightmare. It would, however, provide a large market for used and moderately-degraded EV batteries, silencing the "butbutbut EV batteries will end up in landfills so they suck"-crowd once and for all.

Make sure the fireproofing you add is _extremely robust_ . Maybe get a sheet-metal shed to put at a modest distance from your house, and run wires from there. Fire departments don't actually "put out" lithium battery fires. They just dump massive amounts of water on them to cool them off somewhat until the battery has burnt up all it's fuel, to hopefully keep the blaze contained. Some have suggested that EV batteries don't belong within 20 meters of any flammable construction. That may be excessive, but the fire can easily melt a car down to a puddle. There are longer lasting batteries with lower power density which are better for non-mobile use.

Very well done for a proof of concept! I'll take a look at the code later and maybe modify it for my own battery.

Brilliant job!!! Thank you for sharing your genius! Some of those esp32 micro controllers have LiPo battery management on board.

Love it, nothing makes me feel better than let the Big Energy people tell the public the way you should become energy independent and you just do what works for you, the more people learn how to do it yourself the better WE THE PEOPLE are thank you.

I hope that a project like this will be available for my Bolt EV whenever it reaches end of life in 10 years or whatever; I'd love to be able to reuse the battery as a house backup and storage rather than recycling with the rest of the vehicle, because I'm confident the battery will still have plenty of life/value left at that point.

I was looking to see if anyone had done this a few weeks ago. This is brilliant grat job

That is an awesome looking setup! Subscribed and looking for more :)

You are greener than the government. Great job!

Nice one 👍 I was curious about the inverter and HV battery but it seems it takes wuite a wide DC voltage range which is perfect for this re-use - unlike 48V systems which require more up and down conversions. I guess the only snag I can see here is playing around with HV DC 😬

Awesome, I wish everyone understood the energy independence renewables and storage brings.

Thank you so much for sharing! I love this reuse of old EV batteries!!!

Amazing Work. Thanks for your hard work!

Looks really good if you don't want to disassemble the battery pack and do the rewiring

This world needs more genius people like you to create a better world.

Wow this I have been dreaming of and you just explained how to solve this to my electrician. Thanks so great full. 👌

I would love to install this in my RV.

Wow! Awesome inventiveness. 👍👍

Thank you for this excellent education.

Grate stuff, I probably would add a grounding wire to the battery, for safety. For your safety... 😊

Thank you for a great video! Just a few moore panels and batteries and you cut the grid completely

Hi Dala do you have any thoughts on making this for available as a package for people off grid? I have thought I could just run a 12v invertor straight from the leaf 12v battery as the main battery also feeds into (charges) the 12v. Would this still work if I swapped the cars 12v battery for a larger capacity 12v leisure battery?

awesome job! I'm almost ready to build my own solar setup.... 💪💪

Great way to power anything, not just a shop !

I think i watched this Video 5x 😀 This is soooo awesome. Bought a used Leaf Batterie last week. Iam going to do the same. Thank you so much for sharing.

A bit gutted by this video. A month back our 30kWh Leaf was written off. I searched for options for home storage but all seemed to involve striping the pack down to cells so I did nothing about it. Salvage cost I could have paid for the car was £2,900. If I'd seen this video then I may have gone for it - particularly as packs on eBay seem to be about £5k. Oh well, such is life. Great 'inventing' and video, many thanks. ps, would be interested about the question someone else asked about storing packs vertically rather than flat - any potential issues? > Just seen this is already answered - you think fine vertical. Cheers.

Thank You for All that you are doing for our Planet Earth.... Peace.. Shalom.. Salam.. Namaste 🙏🏻 😊 🌈 ✌ ☮ ❤

You should have 1mln subscribers by now. I tell all my feiends about your sollutions... its amazing research you have fone. Smart man.

I just got the lilygo and will try connecting it to my older Fronius Symo inverter....our old 2012 leaf is due for a battery upgrade soon so hope to use the removed battery for storage!

awesome video!

Great job Dala, super excited to see you get it working with a Tesla battery!

Great idea I just junked my S and will try and get it back

Stumbled upon your video by chance and I must say this is very neat! It is a bit on the riskier side for my liking but still amazing that you can go off-grid. All the power to you! I wonder something though. How do/did you make sure the used Leaf/Tesla battery pack is in good shape and there are no problematic cells that's gonna burn the house?

Thank you great information

Wow. This is what I'm hoping to do when my LEAF is at end of life. (the battery pack) Thanks for the video.

wow, game changer! this is like 5x cheaper than purpose built new home batteries, thanks!

I know it is straightforward, but showing a parallel setup so you are able to connect more batteries as required would be useful. Great work as ever!

last time I saw this, a used LEAF battery costs almost the same as brand new LFP cells with the same capacity. in other words, you are better off with LFP because it has several times the cycle life and much more flexibility for installation than the EV battery. It also helps recycling the old LEAF batteries to extract various metals in it for better use

2:16 please tell me you have fuses in that junction box....

Looking forward to the video where you explain the Leaf pack more thoroughly, so us with less smarts can consider doing likewise!!

Well done Dala. What you have done is genius. If I can source a battery I will definitely give this a go. On a different topic. Why is it not possible to repack a leaf battery with after market cells and reuse the existing wiring to these cells ? I know it would be difficult to match the physical size but the newer cells would make up for this all be it with slightly less range.

Hi, can the supported inveters and hardware/software of the GitHub project also handle two or more EV batteries ?

Fascinating, thanks 👍

Great work, thanks a lot Dala.

The Fronius Gen24 has a +5 V Output. You can use that to power your PCBs.

I like the channel just the intro is a bit long

🎉 great setup!

Perfect idea - I do think you need more solar panels to fill the EV battery - love the arduino - we use them for remote data logging on environmental monitoring - any thoughts to connect to a more recent current/live/real EV via the 400v DC CCS connector?

I’ve watched this a few times trying to get my head around it. I’m looking to do a conversation like Regen EV’s fastleaf, but the vehicle will be primarily battery storage for an off grid property. I’d like to have a way to fairly easily disconnect and move the vehicle. If I used the aux port for the heater as the output to the grid, I could keep the main power to the motor connected? For the canbus plug could I use a jumper to just put a second connector somewhere accessible? Any advice would be appreciated.

This is super cool, I appreciate all the work you put it to document and share the work you did. Have you done the same process for any other EV packs?

Thanks for sharing. I really think it's a great idea to recycle older or half-life batteries from electric vehicles. We help the environment and become independent of the grid. Regards from Brazil!

just make sure you use a fuse in the reducing wire box to limit the amount of amp that can pass in the wire to prevent a short (accident) at the end and burn everything

Fantastic video and a fantastic idea. Imagine if Zoe batteries could be used! There are so many old ones about.

Fantastic work Dala 💯

Love your work, thanks from AUSTRALIA 🇦🇺👍🍻

Does next upgrade will gonna be battery(leaf) to battery(leaf) charge?

Dala, that is something I would like to do for an off grid application, but could explain it a little simpler for us that are not as advanced as you. Especially the part how you can charge the 400volt dc battery pack safely. Also, can this be used with your 48 volt system that you already have installed?

Great stuff. 12v wire setup and how and when to do switching needs clarity. Otherwise seems clear in github and on this video 🎉🎉

Have you ever thought of creating a kit for particular batteries? I'd be interested in helping you develop one

Leaf batteries start to look like a worthwhile investment :)

Hi Dala, I admire your skills and inventions. I would not be able to set it up by myself, but if there is any plug-and-play kit on the market in the future, I would buy just the kit, inverter, and used leaf battery, which would be huge.

Wow man! This is a good channel! Subscribed.

This is excellent. Well done

Nicely done. Eager to see your fireproofing solutions. My understand is that the leaf’s battery chemistry is fundamentally safer than other EV battery chemistries. Also, the onboard BMS is fairly robust and should prevent overcharging throughout its usable life. As long as the battery pack remains sealed, with no opportunity for water to enter, the risk of fire will be close to zero. But, it’s always good to plan for the worst.