What Is It With LFP For Batteries?
  • drdabbles drdabbles 2d ago 66%

    Something to consider is that NMC and NCA cells can use less volatile electrolyte, with several solutions to that particular problem already existing in commercial applications. On top pf that, there are additives to electrode material that can physically separate them from their current collector, thus stopping all electrical flow completely. Panasonic is starting to produce such cells now.

    LFP doesn't have a higher cycle life, it has an equal cycle life but with lower current capacity. So at the end of the cell's expected lifetime the LFP cell has stored and discharged vastly less Watt-hours than an NCA or NMC cell. This is a really critical component of the lifetime cost calculation, obviously.

    LFP isn't a really good power source, it's an entirely acceptable power source. But in the application of a vehicle where weight is a key factor because road wear increases with the 3rd or 4th power of vehicle weight, any cell technology that requires a physically larger and heavier pack (LFP requires both dimensions be increased) isn't a clear win. LFP is a great technology for stationary storage, though, since the size and weight are much less of a concern.

    One of the key things to remember is that any technology that improves one cell type is likely to improve all similar cell types. So as improvements in electrolyte and current collector safety improve with LFP, they also improve with NCA and NMC which makes the latter two more attractive.

    1
  • Apple secretly worked with BYD on EV battery before dropping car project, report says
  • drdabbles drdabbles 4d ago 100%

    Hard pass on them buying Rivian. I don't want my truck locked into their walled garden. Apple making BEVs makes very little sense at all, but I could see them getting into the infotainment and body controller business if they wanted to branch out in the hardware space.

    3
  • Electrify America and 4 Gen Logistics open electric truck charging station
  • drdabbles drdabbles 4d ago 100%

    As of right now, long haul Class 8 is really not very feasible for BEV. The range is low enough that you don't get a full driving shift out of it, and that's really how long haul vehicles move. I think once we reach that point, though, the 30 minutes per 8 driving hours break (in the US) might be a bit too low to achieve a full 10 or 11 hour driving time day. But the minimum rest time after 10 or 11 driving hours is 8-10 hours which is much more time than would be required to charge on even a 150kW DCFC.

    I think we're getting closer to Class 8 being feasible, but it's probably 5 years off or so still. Good to get the infrastructure in place now rather than having it lagging behind when these trucks start showing up in higher numbers.

    https://www.fmcsa.dot.gov/regulations/hours-service/summary-hours-service-regulations

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  • Electrify America and 4 Gen Logistics open electric truck charging station
  • drdabbles drdabbles 4d ago 100%

    I'm a bit surprised they're deploying 350kW chargers for Class 8 vehicles rather than MCS chargers. Though I'm guessing there's an attempt to strike a balance between easily available utilities services, driving segment length, driving shift length, and charger speed. But when MCS chargers start getting deployed, Class 8 vehicles become much more reasonable.

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  • DHL tests Tesla Semi and confirms the electric truck's impressive performance
  • drdabbles drdabbles 5d ago 20%

    Cool. Yeah, that's how people behave. You should meet more of them, I think. Also, quite a bit of that piece is Fred's opinion, so maybe consider that.

    -3
  • DHL tests Tesla Semi and confirms the electric truck's impressive performance
  • drdabbles drdabbles 5d ago 16%

    I figured we were having a discussion. Calling it disinformation is hilarious though.

    -4
  • DHL tests Tesla Semi and confirms the electric truck's impressive performance
  • drdabbles drdabbles 5d ago 16%

    Like I said, it doesn't really impact me. So, you can feel how you want to feel. I don't believe anything Tesla says because I've owned one, and I know how they attempt to manipulate their news cycle. I also downloaded the raw data and ran the numbers myself. The Semi does not achieve 500 mile range with a full gross weight traveling at normal highway speeds. You can calculate the rate of SOC decline between data points where the average speed was > 50 MPH and it comes nowhere close.

    Now, if on the other hand the title said DHL was happy with their Semi test bed then that wouldn't really be up for dispute. But the instant the title said it achieves 500 miles then I'm sorry but there's no data to support that claim that has ever been published. And I promise you, if such data did exist Tesla would be the first to brag about it incessantly.

    -4
  • DHL tests Tesla Semi and confirms the electric truck's impressive performance
  • drdabbles drdabbles 5d ago 25%

    Just so I understand you, you’re saying if Pepsi is positive or neutral on Semi, then your stance is that we cannot take their word for it, and that has to be evidence that Pepsi doesn’t like the Semi. However, if they are negative (as your one employee cited in your one blog post source) then we should absolutely take that as irrefutable fact. Do I have that right? You don’t see any problem with your logic there?

    You don't understand me. I'm saying that Pepsi officially has an NDA. I'll also say Pepsi is testing multiple brands of Class 8 Semi as well as lower class vehicles. I think we need to be wary of marketing efforts, because a lot of people don't seem to be able to separate marketing material in press releases from reality. Surely nobody here believes advertising is reality, right? Right?

    you really need to cast a critical eye on it.

    Great. Now apply that same criteria to Pepsi's PR team. And there we go.

    Pepsi seems okay with what was delivered.

    This is a different topic than the headline, though. I'm not disputing whether a company would be happy with the Tesla class 8 truck for the right application. I mean, if they compare it to another brand they probably wouldn't be happy, but that's a different topic too. I'm specifically disputing the claim that the Semi meets the sales brochure's claims.

    to transport the poison they peddle”

    I mean, take that part of the sentence out and I think you'd agree with it. Pepsi has mandates to meet, and credits to claim. That isn't really in dispute in any way, and I'm not even sure that's necessarily a bad thing. But it does explain them putting up with reduced capacity, reduced range, and the breakdowns.

    I think you’re looking at the darker blue battery charge

    Not only did I read it right but I've processed all the data for all the participants to calculate the consumption at a higher speed. The data is available in CSV format, jump in R or Pandas and do some processing and you'll see what I mean.

    I am comfortable with rejecting your conclusion.

    Kay. 👍

    -2
  • DHL tests Tesla Semi and confirms the electric truck's impressive performance
  • drdabbles drdabbles 5d ago 20%

    I said their numbers were verified in real-world use by third parties.

    When you look at the Drive on Less data, it isn't.

    I found a “Run on Less” page. Nothing about any testing. Perhaps you have a link?

    Um, what are you talking about? Literally the entire campaign is about collecting fleet data over an 18 day period.

    LOL what? 500 mile range is a 500 mile range. There is no “how”. There’s only one way that works.

    Ok, so then if I can find a 500 mile down hill stretch and I take the battery out completely, I have a 500 mile range. That's what you just said, and I think you know that's nonsense.

    Sauce?

    See the links I already posted.

    I don’t believe you.

    Ok. That doesn't really impact me. You can believe the company that his lied constantly about capabilities if you want, that's fine. Not being skeptical at all of their claims makes complete sense given their track record at this point.

    -3
  • DHL tests Tesla Semi and confirms the electric truck's impressive performance
  • drdabbles drdabbles 6d ago 33%

    so I don’t see any reason they would do that.

    You don't see any reason Tesla would fudge their numbers and drive the Semi slowly? I can think of several reasons.

    What testing?

    Well you can look at the Run on Less campaign, and then start googling for other tests.

    This is how EVs actually work.

    Yes, but it's NOT how Tesla claims their 500 mile range. Also, every time a Tesla Semi has attempted the longest range driving, the packs have died. Not just run out of charge, but been physically damaged from draining them so low. You don't have to explain how an EV is operated in real life, I've daily driven one for many years now.

    When did Pepsi call them shitboxes?

    Well, a Pepsi employee. Obviously Pepsi can't say that in the media because Tesla will take away their vehicles which means Pepsi won't qualify for enough tax credits.

    -1
  • DHL tests Tesla Semi and confirms the electric truck's impressive performance
  • drdabbles drdabbles 6d ago 20%

    Be as skeptical of me as you like. Feel free to believe the company that has lied for a decade now about capabilities and timelines. It doesn't hurt me at all. But keep in mind that Tesla has forced crash victims that they have settled with to sign NDAs and non-disparagement agreements. It's 100% likely that PepsiCo has also signed both.

    I'm not sure how you could think they weren't having reliability issue with all the Tesla Semi pulled over and being towed for a couple years now, but again that doesn't really effect me. If you look, you'll see evidence. And, of course, you can watch Tesla's own marketing video of the overnight drive. Zoom in on the speedometer and see how fast the driver is going, see the driver being passed by other semis, then wonder why that might be.

    https://bradmunchen.substack.com/p/scoop-the-tesla-semi-from-an-insiders

    You can also look at the data from Run on Less, look through the days and vehicles. Notice the slope of the curve for drives where the Tesla Semi drives 60 MPH even for brief periods. https://results-2023.runonless.com/truck/?day=17&depot=pepsico&truck=pepsi_tesla3&units=imperial

    -6
  • DHL tests Tesla Semi and confirms the electric truck's impressive performance
  • drdabbles drdabbles 7d ago 80%

    Speeds "exceeding 50 MPH"? Like, 51 MPH? The claimed efficiency is nonsense given the promotional videos from Tesla where they tried to obscure the driving time, distance, and speed. It also flies in the face of the EV Semi testing conducted last year

    DHL's statement is that their longest run was 390 mines, with no information about state of charge at the beginning or end. They are extrapolating the 500 mile distance.

    This sounds like Pepsi's first press statements before they found out what shit boxes these trucks are the hard way.

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  • Isn't this called corruption?
  • drdabbles drdabbles 2w ago 66%

    Paying people for votes is very much against the law. And Trump's shitty behavior doesn't really mean Elon's bullshit shouldn't be reported. You think Trump's going to pardon these morons for their participation? He pardoned two cabinet/campaign members from his original bid for office rather than the reelection debacle, both of which were from the Mueller investigation. He pardoned none of the co-conspirators for his 2020 re-election antics. Trump only does favors for people that are valuable to him, and Elon's worthless for anything but his money and his access to the raw twitter firehose.

    1
  • "Initials" by "Florian Körner", licensed under "CC0 1.0". / Remix of the original. - Created with dicebear.comInitialsFlorian Körnerhttps://github.com/dicebear/dicebearRE
    RealTesla 2w ago
    Jump
    GEICO is Terminating Insurance Coverage of Tesla Cybertrucks, Says “This Type of Vehicle Doesn't Meet Our Underwriting Guidelines”
  • drdabbles drdabbles 2w ago 81%

    That approach and departure angle, tho. Such an amazing offroad vehicle.

    7
  • "Initials" by "Florian Körner", licensed under "CC0 1.0". / Remix of the original. - Created with dicebear.comInitialsFlorian Körnerhttps://github.com/dicebear/dicebearRE
    RealTesla 2w ago
    Jump
    GEICO is Terminating Insurance Coverage of Tesla Cybertrucks, Says “This Type of Vehicle Doesn't Meet Our Underwriting Guidelines”
  • drdabbles drdabbles 2w ago 81%

    Purchasing one of these pieces of shit is itself a flag on your insurance rating.

    7
  • Exclusive: Jos Verstappen calls FIA swearing row "the most ridiculous thing"
  • drdabbles drdabbles 3w ago 85%

    Jo's needs to sit down. FIA is nuts, but Jos is a clown.

    5
  • Ben Sulayem thinks FIA isn't getting enough credit: "We only get rubbish"
  • drdabbles drdabbles 3w ago 94%

    Liberty arguably turned the commercial aspect of formula 1 around, and FIA is ruining it with morality police bullshit. Nobody's interested in stopping body piercings or clutching pearls over swearing besides Ben.

    15
  • Top 10 Chrome Extensions for Developers
  • drdabbles drdabbles 4w ago 75%

    In the dark ages, Mosaic downloaded Firefox and IE. Time truly is a wheel.

    2
  • "Initials" by "Florian Körner", licensed under "CC0 1.0". / Remix of the original. - Created with dicebear.comInitialsFlorian Körnerhttps://github.com/dicebear/dicebearRE
    RealTesla drdabbles 10mo ago 89%
    A Malaysian Tesla Model 3 customer receives mismatched door panels - SoyaCincau
    soyacincau.com

    cross-posted from: https://monyet.cc/post/2476921

    37
    2
    "Initials" by "Florian Körner", licensed under "CC0 1.0". / Remix of the original. - Created with dicebear.comInitialsFlorian Körnerhttps://github.com/dicebear/dicebearRE
    RealTesla drdabbles 1y ago 50%
    Serious Malfunction / Model Y shut down while driving after only 10 miles out of dealership.
    https://www.reddit.com/r/TeslaModelY/comments/14gnclw/serious_malfunction_model_y_shut_down_while/

    Seems like yet another brand new Model Y has stopped in its tracks on the road. No doubt the army will be out in force telling the owner they drove it wrong, or baselessly claiming they hit something, or even just claiming it's fake. Either way, the excuse generator is kicking into overdrive.

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    I created an account some time ago, I can see the account from lemmy.world/u/drdabbles, and I can successfully reset my password using the "recover password" link on the login page. But when I attempt to log in with either my username (less than 20 chars) or my email address, the button changes to the spinner and absolutely nothing else happens. The browser makes no requests to the API that I can see, the page just sits there forever if I allow it. When loading the login page, FireFox does give an error about the websocket closing, but I'm obviously able to use the site if I use the password reset function. I would expect that if the server is overloaded, as has been suggested by casual users, that the login function would work occasionally at least. Or that the page wouldn't fully load, or that I'd see a request and a timeout. I'd also expect the password reset route to timeout or fail, given it seems to use lemmy-ui to communicate to the lemmy back-end. When I signed up, there was no captcha, I presume resetting my password wouldn't work if my email wasn't "verified" but I don't remember if I received a verification or not. I presume that because I'm able to use the site and comment, the email must be considered verified though. Any thoughts?

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