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  1. samroy92

    Cybertruck 1000V Architecture + V4 Supercharging Confirmed!! ⚡️ "It's Going to be Used for Cybertruck Too" - Elon Musk

    I think I disagree, there is a C-Rate cell level limitation on charging (otherwise you will damage the cell): C-Rate (peak 2.5) of the new Model S Plaid is even lower (18650 cells): Semi has 1000kWh so its about 12-13x the amount of batteries as a Model 3 LR. Model 3 LR does about 3.0 peak...
  2. samroy92

    Cybertruck 1000V Architecture + V4 Supercharging Confirmed!! ⚡️ "It's Going to be Used for Cybertruck Too" - Elon Musk

    I want to make sure we subvert expectations, more likely CT will be capable of 300-400kW charging, not 1MW. There is a cell level limitation on C-rate for charging. Semi can get away with it because it is 1000kWh - whereas CT will be ~130-200kWh
  3. samroy92

    Cybertruck 1000V Architecture + V4 Supercharging Confirmed!! ⚡️ "It's Going to be Used for Cybertruck Too" - Elon Musk

    Lol I fully agree with you. The extra "tech" is largely an excuse to justify increasing the price (margin %). But that being said - we'll still get cooler tech :P
  4. samroy92

    Cybertruck 1000V Architecture + V4 Supercharging Confirmed!! ⚡️ "It's Going to be Used for Cybertruck Too" - Elon Musk

    Update: 1000V architecture / V4 supercharging for Cybertruck was confirmed during the semi live event! Posted by @firsttruck: Here is link to Tesla Semi Delivery Event but the video is cued to start at info on SuperCharger V4 MegaCharger and also Cybertruck charging. Tesla Semi Delivery...
  5. samroy92

    Cybertruck Range Prediction + Cell Calculation + More [Sources]

    Thanks for this correction, now I feel like an idiot! I did know that yield was % of good vs bad but I also thought cell yields referred to things like Grade A vs Grade B cells and so on: https://evreporter.com/lithium-ion-cells-a-grade-vs-b-grade/ Those Grade B cells don't have the "full"...
  6. samroy92

    Cybertruck Range Prediction + Cell Calculation + More [Sources]

    Agree with you. I also think they could release CT at original prices and post positive on automotive gross margin... kinda nuts. But w/ supply and demand Tesla isn't going to leave money on the table. Elon is going to try to sweeten the deal for us though: more features that we thought we...
  7. samroy92

    Tesla recalls 321,000 U.S. vehicles over rear light issue

    Oh okay so this is a nothing burger again, got it. Move along folks...
  8. samroy92

    Cybertruck Range Prediction + Cell Calculation + More [Sources]

    I think we are all assuming yields will improve over time, the current cells yield about 81Wh usable capacity per cell. I am already assuming they will be >10% better yields and >5% more increase from chemistry alone. That may put our CT cells at a comfortable 93Wh per cell by late 2023.
  9. samroy92

    Cybertruck Range Prediction + Cell Calculation + More [Sources]

    And the big promise of Tesla DBE (purchased from Maxwell acquisition) dry-battery-electrode process is that the cost to manufacture a cell will be substantially cheaper than a wet battery electrode process (lots of extra chemicals, machinery, and processes).
  10. samroy92

    Cybertruck Range Prediction + Cell Calculation + More [Sources]

    It's hard to say because there is a lot of factors in cost of battery manufacturing but between $100-$150 per kWh at the pack level. Cost of raw materials has fluctuated a lot in the last few years but at least we can make a range of cost. Cost of a 150kWh CT pack may cost between...
  11. samroy92

    Cybertruck Range Prediction + Cell Calculation + More [Sources]

    Don't worry about that. Even if the Cybertruck had 320mi of range on the launch versions that would mean: 320mi/2.5mi per kwh == 128kWh battery pack. That's enough to power an average US household for a few days. Not to mention you can survive 2 days in the bitter cold of Norwegian winters with...
  12. samroy92

    Cybertruck Range Prediction + Cell Calculation + More [Sources]

    And it goes without saying that Model X has to be more aero than CT, based on cross sectional area alone. Not to mention total drag coefficient.
  13. samroy92

    Cybertruck Range Prediction + Cell Calculation + More [Sources]

    Agreed. My thoughts are that CT comes in slightly more efficient than a Rivian R1T and Ford F150 Lightning. Seems safe to assume a bigger, sharper, flatter, less aero-er CT to come in at ~400. Which is why I base all my calculations on 2.5 miles per kWh @TyPope R1T 480 wh/mi Lightning 480...
  14. samroy92

    First gen cybertruck vs Second gen

    Battery Technology comes top of mind. I imagine battery density improvements between now and 2027 will be 2x it is today. It means your 2027 Cybertruck will be lighter, go further, charge faster, last longer. This is coming from someone who is like #5000 in line :D
  15. samroy92

    Cybertruck Range Prediction + Cell Calculation + More [Sources]

    @Crissa this is all to say that originally we had thought 4680 yields would be better, its ramping slower than expected, its all good. I am just trying to adjust for a realistic range given all those factors. Just decreased my range estimate due to more accurate energy density facts w/ UCSD...
  16. samroy92

    Cybertruck Range Prediction + Cell Calculation + More [Sources]

    The Limiting Factor adjusted for silicon in Anode, he estimated 5-10% bump in energy density. That puts it at 90Wh - 94Wh. Usable is even lower 85-90Wh. That is still under. Even with major improvements in 2023 (which I think will happen) we are still unlikely to see anything close to 131Wh per...
  17. samroy92

    Cybertruck Range Prediction + Cell Calculation + More [Sources]

    This is true, I want to leave room for not only yield improvements but also a higher nickel chemistry as outlined at battery day: I still think we are working with a maximum of ~1500 cells per CT pack (1450-1520 is my prediction). Working backwards in order to achieve 500mi of range with 1520...





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