u/Firm_Knee1358

How to Tesla Model Y Battery as Home Backup?

OK
I know I need an inverter and like a bunch of like electronic other stuff and switches and DC AC and full bridge rectifier and yada yada yada yada yada yada . Specifically, I am asking how I get data from the penthouse of the battery on my computer so I can see the voltage is across the battery. I’m concerned about the battery health and if the battery is viable or if I will have to make any repairs to any of the cells. I have a connector for the battery already, but I’m not sure how I should wire it in such a way that I can plug it into my computer. I know that it needs three wires going to 12 V (how does that even work?) and a few other wires going for data. I was thinking of using ethernet as the interface, but I think USB will technically work. I know that there are some pins that I have to short out because in a YouTube video I saw, the guy was talking about blowing out resistors. I think I need 50 to 100 oh resistors to short out some of the pins, but I’m not sure. Does anyone have any sources to wiring diagrams for this? I have really never done anything like this before and any tips would be helpful. No, I can not afford to have someone else do this for me, so please suggest stuff that is within the realm of possibility for someone with DIY means only. Are there any good communities online for troubleshooting this outside of this sub Reddit? I am familiar with the dala guy and battery man on YouTube who deal with this stuff, but I wasn’t able to find any specific links for this part of the project. They mostly help with the software, but I don’t understand the hardware wiring and really need help with that to get off the ground here.

I’ll help as welcomed!

Thanks

J

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u/Firm_Knee1358 — 7 days ago

I mean, is there really anything wrong with doing it that way? From how I look at it, the stuff meant for the outside is more expensive, so why not do it this way? Will bugs get in it? Does it have a moisture problem? Are there concerns about compression? Will fiberglass work or should I go with mineral wool?

The context: Trying to insulate a huge 8x16ft shed on the property that I can keep stuff in a conditioned space. Im trying this project to see if I can bring it up to spec with passive house, or a much lesser but still impressive standard, standards as a fun challenge. I plan on using continuous exterior insulation to prevent thermal bridging. I am not quite sure how to do it though and would love additional info like:

How do I keep my air barrier continuous at the roof?

What about at the floor joists (the rim board and the voids in between the joists under the shed, its on blocks for the moment)

Any good links you guys been hoarding to a research paper that has pictures and detailed instructions on installation for a complete noob like me?

My plan: 2 by 4 studs, 12” oc, 3/8 sheathing plywood, mineral wool, polyiso w/ built in air barrier taped, 2 by 2 stripping, 6-8 inch screws, cedar siding.

P.S. how the heck does the door and window get trim afterwards? Like, they will be recessed by like 6 inches or so!

I invite all feedback so don’t hold any punches

Climate zone is 4 or 3!!!

-J

P.P.S. Trying to buy everything from Menards lol, but if you have a good supplier in mind for the St. Louis region, hit me up

https://preview.redd.it/xp125tbgcjxg1.jpg?width=3024&format=pjpg&auto=webp&s=3229448d40f32fbff1729cfe8bd1c7b533d502fb

https://preview.redd.it/xl2y1sbgcjxg1.jpg?width=3024&format=pjpg&auto=webp&s=4470547e766239bcbccaef13ad183bf73f8296d7

reddit.com
u/Firm_Knee1358 — 2 months ago