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Dr. Dabbles

@ drdabbles @lemmy.world

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Joined
3 yr. ago

  • Exclusive: Tesla doing damage-control, discounts for European fleet buyers

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  • Their mobile service numbers are a tiny fraction of their service appointments. Mobile service isn't why it's slow and expensive, Elon is.

  • Exclusive: Tesla doing damage-control, discounts for European fleet buyers

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  • You don't see reviewers complaining because they have a financial and social interest in keeping the lies going. Tesla service centers are shitty, their management is shitty, and Tesla refuses to fix the problem because it costs money.

  • Tesla Lays Off Employee Who Slept In Car To Work Longer Hours

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  • Tesla isn’t valued like a car company.

    The market being stupid doesn't change the fact that they are a manufacturing company. The fact that they can convince people to repeat this nonsense is how they keep the market stupid. Keeping the market stupid is how they continue pumping cash to stay afloat.

  • Tesla Lays Off Employee Who Slept In Car To Work Longer Hours

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  • iPhone actually works. Also, which generation iPhone weighs two tons?

  • Tesla Lays Off Employee Who Slept In Car To Work Longer Hours

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  • The difference is that "tech" companies can produce more of their software with minimal or no additional cost. This is why their values tend to be higher than traditional companies manufacturing things. Tesla can't do that. Their revenue is their shitty cars, without them there's nothing to run their shitty non-working software on.

  • Tesla Lays Off Employee Who Slept In Car To Work Longer Hours

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  • Except that the manufacture shitty products. Manufacturing something makes them not operate like a tech company, which is why Elon is desperate for people to repeat that they're a tech company. You're doing his work for him.

  • Tesla Lays Off Employee Who Slept In Car To Work Longer Hours

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  • Tesla isn't a tech company.

  • Judge halts Texas probe into Media Matters’ reporting on X

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  • Sounds like people of Texas should do something. Something about rotten apple and the bunch?

  • CATL, the little-known Chinese battery maker that has the US worried

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  • Because of the rules established by wto members. They decided it was a violation, they all agreed to the terms, so it's a violation.

  • Netanyahu snaps back against growing US criticism after being accused of losing his way on Gaza, says Israel won't stop until 'total victory' is achieved

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  • The history of post WW2 era is the forcing function. For better or worse.

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    Permanently Deleted

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  • An extension cable puts the burden on the user and prevents higher charging speeds. All so Tesla doesn't have to use longer cables to be compatible with the most EVs possible. You know, because of their mission to advance the adoption of EVs. The reality distortion is strong.

  • Netanyahu snaps back against growing US criticism after being accused of losing his way on Gaza, says Israel won't stop until 'total victory' is achieved

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  • In theory, you could make an argument about defending the people living in a hostile region. In practice the government of Israel has been on a hard right slide for decades and have been openly denying basic human rights to the people stranded in Gaza.

  • CATL, the little-known Chinese battery maker that has the US worried

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  • Any nation receiving the products would obviously see through that and protest to wto

  • Netanyahu snaps back against growing US criticism after being accused of losing his way on Gaza, says Israel won't stop until 'total victory' is achieved

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  • Great, then we should stop funding their government and military spending. If they won't stop, we can. Of course we won't, but we could and should.

  • CATL, the little-known Chinese battery maker that has the US worried

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  • The developing of "new things" is pretty international and not exclusive to any region. Universities around the world have been working on energy storage for decades, and lithium batteries are absolutely no different. US universities, European, Chinese, it doesn't matter. They're all hard at work in this area.

    What you do see more of is marketing from Chinese companies of cells that make extremely bold claims and never make it into US or EU products for some reason. IMO that reason is the fact that these "cutting edge" cells are known to use chemistries and technologies that have not at all been proven even in lab settings. Solid state cells is one glaring example of claiming victory long before any reliable demonstration of overcoming massive hurdles has been demonstrated, but there are plenty others.

    There's also the huge question mark outstanding right now where CATL has claimed cell prices will be cut to less than half their current costs over the next year. It's not at all likely that this is possible without a huge injection of cash from the government propping up the industry and driving costs lower intentionally. Which is a trade violation for WTO members. Whether it's right or wrong is another question, but it's against the trade treaty we all signed onto.

  • What Do People Think of Apple's Vision Pro Headsets?

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  • They identify people in public that should probably be robbed. So they're useful for that I suppose.

  • AI Companies Lose $190 Billion After Dismal Financial Reports

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  • All scams come to an end when they run out of marks to steal from.

  • Tesla 4680 Battery Cell Production Is no Longer a Bottleneck

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  • When the only things you read are Tesla marketing, it's unlikely you'll get the truth.

    I already qualified some reasons why but let me be more explicit. The cells charge slower, are lower energy, cost more, and are heavier. They delivered on none of the hype, they were years late, their production numbers are hilariously low, and the manufacturing yields are far lower than competitors.

  • Tesla 4680 Battery Cell Production Is no Longer a Bottleneck

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  • so I asked Bard to

    Let me stop you here and say you're going to have a bad time if you attempt to have this explained to you by a text generator.

    The first problem is you asked it about the form factor rather than the cells, manufacturing process, and chemistry themselves. The shape makes perhaps the least difference of all. Well, except that Panasonic (the company that actually invented Tesla's "revolutionary" battery tab mechanism) already documented a ton of issues with assembling cells reliably when you've got a bunch of tabs. What you want in that case is actually a pouch cell or a prismatic.

    Bard also missed a pretty major one under "Lower production cost". Massive volume makes 21700 cells cheaper too, since all of your costs are divided by a huge number. This is also why 18650s are beating the 21700s. Also, fun fact, Tesla's top performing pack for charge and discharge rates is built in 18650 NMC cells.

    Wider compatibility

    That's a meaningless argument produced by a text generator.

    Faster charging

    Not some cases. All cases. All of Tesla's products based on 21700 cells from all of their suppliers charge faster than any of the packs based on Tesla's in-house cells. Charging "infrastructure" has absolutely nothing to do with this, it's a nonsense hallucination by a text generator. This is one of the major reasons to not use one.

    Lower energy density

    This is just an outright lie, which you could determine by doing the math. Tesla's early Model 3 cells were 17.3 Wh each, while their in-house 46800 are 86 Wh. The Model 3 cells have improved over time, but let's stick with the earliest of both products. So this means their 21700 cells were 247 Wh/kg while the 46800s are 244 Wh/kg. Taking the volume of each cell into account, the old Model 3 cells are 713.55 Wh/L and the 46800 cells are 651.5 Wh/L. So the simple math clearly shows it's lower density in both dimensions.

    Bard slurped up text from marketing efforts and mangled it with some other words and gave it to you. This is a warning not to use these things to learn new topics, they're less reliable than Wikipedia.

    More complex manufacturing

    This is another nonsense argument. First and foremost, Tesla uses stamped collectors on the Y and 3 packs based on 21700 cells so there's really no more complexity in manufacturing. On the S and X packs, they use bonding wires. Bonding wires robots do this work insanely quickly, so it's a foolish argument there as well. Bard has again slurped up nonsense from a fan blog and repeated it, because there's no intelligence in what Bard does. Trusting these things blindly is a problem.

    As an example of what bonding wire robots do, BTW, they are used in the production of every single processor and microprocessor on the planet. Products numbering in the tens if not hundreds of billions per year, with precision requirements wall beyond anything Tesla needs for their old packs from 2012, let alone the newer stamped collectors from 2018.

    Limited scalability

    I already demonstrated that the energy density bit was made up nonsense. But this part is also complete horse shit. Cell chemistry tends to improve approximately 5% per year averaged over a 5 year window. Tesla didn't increase the pack dimensions when going to the 82 kWh Model 3 pack, they simply changed cell chemistry. If I used the cells from that pack in the calculations above, it would make this argument outlandishly pointless.

    4680 Simpler manufacturing

    The cell isn't "tabless" bit instead has a shitload of tabs. Like I said already, Panasonic invented this tech and they abandoned it because it's a frequent source of cell failure. Their patents on this are from over a decade ago, they documented all of their issues pretty well, and Tesla's own internal documents when leaked showed they have massive yield problems in their Texas battery factory.

    Potential for faster charging

    Potential. And instead what we see in real products on sale is the opposite. so that potential didn't materialize.