Search results for query: battery degradation

  1. F

    New to EV, Considering Gravity

    I think that depends on how you react to newer technology. I've had my Model X for over 7 years and I still love it. It's had about 9% degradation, but I still drive it on long trips without any noticeable "road trip quality of life" loss and that's with a car that had a lot less total range at...
  2. S

    New to EV, Considering Gravity

    ...has cash runway through 2026, Gravity sales will help them last at least through 2027, so they'll be alive for 3 years. If you plan to keep a car for over 3 years, EV is not the best choice imho (battery degradation, swift changes in technology and competition and corresponding depreciation).
  3. levsha

    Lucid's Charging Curve, can it be improved via OTA update?

    And what is the 10 year degradation for Lucid Air battery on its charging curve? The answer is: we don't know either, they haven't existed that long. Everyone does estimations based on various intensive stress-tests. And not only car manufacturers: battery manufacturers do this as well or even...
  4. B

    Lucid's Charging Curve, can it be improved via OTA update?

    ...high temperature storage/exposure is undesirable due to thermodynamics. > dendrite growth and plating, which causes long-term battery degradation, are mostly "defect" accelerated. Sharp geometries in the electrodes (e.g., imperfects, nicks, etc.) create high electric fields hence...
  5. Buffalo Bob

    Horsepower Distribution of a 2023 Pure AWD...

    Interesting that on the EPA web site, ALL of the information on these two 2023 trim levels is exactly the same except for the total range figure. Maybe a slight battery degradation difference between the two tested models accounts for the 3.5% range difference.
  6. B

    Lucid's Charging Curve, can it be improved via OTA update?

    I watched the video. I don't disagree with the contents. The author looked at extreme ranges of temperature and charging rates in order to elucidate/exaggerate the degradation mechanisms. This is helpful in understanding the mechanisms. That said, it is not just about temperature. There is...
  7. B

    Lucid's Charging Curve, can it be improved via OTA update?

    I don't think anyone is advocating charging or fast charging beyond a certain SoC. Typically, this "threshold" is around 80% for Li batteries. I am no expert on the subject but there is plenty of literature and research on this issue. It is a well-known electrochemistry phenomenon. Broadly...
  8. R

    Lucid's Charging Curve, can it be improved via OTA update?

    It is actually well known that higher rate of charge at higher SoC reduces battery longevity, it isn't an unknown. The question is just exactly how much the result is over time. See video I linked above, he explains it well and provides references. I think it's also well known for Teslas that...
  9. R

    Lucid's Charging Curve, can it be improved via OTA update?

    Exactly, it's not "I hope they can figure it out". They can set it to anything they want - they could tell it to just rip 300kW all the way to 100%. It'll just rapidly degrade the battery. Given Lucid's general approach to "make the car generally a better thing for people", including...
  10. R

    Lucid's Charging Curve, can it be improved via OTA update?

    This doesn't sound right. Recently did a trip between Chicago and St. Louis, which is ~350 miles each way. 2.6m/kWh is very optimistic for an R1S - are you sure this is true? I was still seeing ~160kW at 75% in the Lucid. I think it did drop to ~120kW around 80%. I just checked my app, it...
  11. B

    Lucid's Charging Curve, can it be improved via OTA update?

    The other thing that eludes me is: > Lucid's 900V charging architecture should substantially reduce the charge current hence, the thermal heating (I**2R) (for the same kWh delivered). If so, why wouldn't Lucid be able to sustain a flatter (longer) charging curve compared to competitors charging...
  12. R

    Lucid's Charging Curve, can it be improved via OTA update?

    My GT-P charges at 145-155kW up to 72%. I believe only the GT-P and DE do this. However, 2025 models should have similar charging curves.
  13. B

    Lucid's Charging Curve, can it be improved via OTA update?

    ...w/ 10% SoC), there is virtually no differences between the EA 150kV and 300kV chargers. By the time you get to 50%+, the charge rate is often less than 80kW. I understand the limiters of thermal and battery degradation. But I think a flatter charging curve is more advantageous for road...
  14. R

    Lucid's Charging Curve, can it be improved via OTA update?

    Sure, what's the 10 year degradation on the battery packs for the cars doing 200kW sustained? Answer: We don't know, they haven't existed that long. Better isn't just about the short term. Subjectively to you, that matters more.
  15. B

    Lucid's Charging Curve, can it be improved via OTA update?

    Ummm, Lucid's claim is their "industry-leading" fast charge, @350+kW, 900V etc.. Other competitors are doing much better with flatter charging curves that imports 200kW over a sustained period of time (say 30min). Lucid's charge rates often dropped well below the 200kW level after10m.
  16. R

    Lucid's Charging Curve, can it be improved via OTA update?

    ...is the long term effect of the difference of this curve. Lucid could change it today and just make it absolutely rip - but battery degradation over the next 5 years might be absolutely awful as a result. Have to kind of trust that they're adjusting it the best they can for a much longer...
  17. borski

    NACS Megathread

    I hear the Tesla Roadster is shipping with them
  18. Tâm

    NACS Megathread

    https://www.cnbc.com/2024/10/16/the-race-for-next-gen-ev-batteries-may-soon-pivot-to-semi-solid-state.html "I keep hearing the same answer: 'We are five to seven years away." "...the swelling of the battery during charging and, ultimately, the degradation of the cell after extensive recharging."
  19. R

    Typical Battery Range Degradation

    I'm curious about normal battery range degradation. I've had my Lucid Air Touring for 22 months with 34,427 miles on it. My range at 80% charge has declined from 340 miles to 333 miles so a rate of roughly 1 mile range degradation per 5000 miles driven ( = 34,.427 / (340-333) ). Seems...
  20. Bus Driver

    The API shows a value named "battery health level". What is it?

    This must be a really recent development. I had my battery back replaced earlier this year. Lucid Service in Costa Mesa CA assured me that it would be a brand new battery, and not a refurbished or remanufactured, or re-anything one.
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