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Thread: 400,000 miles in a Tesla Model S in 3 years

  1. #1
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    400,000 miles in a Tesla Model S in 3 years


  2. #2
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    Hmmm, 2 batteries in 3 years.
    One would think LA to Las Vegas would not be hard miles.
    I wonder if Tesla would give warranty to a normal Joe and not a high profile shuttle service and the cost to Tesla of that say $40K?

    Regards Philip A

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    Quote Originally Posted by PhilipA View Post
    Hmmm, 2 batteries in 3 years.
    One would think LA to Las Vegas would not be hard miles.
    I wonder if Tesla would give warranty to a normal Joe and not a high profile shuttle service and the cost to Tesla of that say $40K?

    Regards Philip A
    Regarding warranty replacement, the question is: are they better or worse than the regular automotive manufacturers often featured (negatively) on this forum? It wouldn't be hard for Tesla to be better in the interests of growing their business.

    And on the pricing of a replacement battery, there are of course different prices depending on who's paying when. A good article on the subject:

    What the Tesla Model S Battery Replacement Price Doesn’t Say | PluginCars.com

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    Lithium cell longevity (or any battery for that matter) is directly proportional to the extremes of charge and discharge you subject it to.

    The LiFePo4 cells I use are nominal; 3.2v , fully charged is 3.65v fully discharged 2.5 v if you charge or discharge over / under those values the cell is toast / unrecoverable .

    If you cycle the cells to the limit they are good for 2000 charge cycles .
    If you cycle 80% they are good for 10,000 cycles & beyond

    I have my BMS set to shut the car down at 2.7V & stop charging at 3.45v .

    In a Tesla 200,000 miles at say 200 miles per charge is only 1000 cycles . Im sure Tesla algorithms would not allow charge / discharge to the limits, but who knows with then.

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    I guess the point I was trying to make was that Tesla would very soon go broke if they paid warranty on a large number of batteries after say 3-5 years.

    The article referred to above states that the batteries would cost Tesla $34K each, so 2 would be $68K.

    I don't think there would be anything like that profit content in a Tesla S.

    I sort of grudgingly admire Elon Musk but he is like a runner trying to outrun a Tsunami and his shoes are wearing out faster than he anticipated as his Giga factory for batteries does not seem to be yet performing and costs reducing as planned.
    Regards Philip A

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    Interesting, but slightly off topic,in RACQ's recent survey on many different vehicle running costs,they didn't have any electric or hybrid vehicles in their final report.

    Their comment was they had found them surprisingly expensive to own and run compared with existing vehicles.

    Over the next few years,i bet this will change.
    Paul

    D2,D2,D2a,D4,'09 Defender 110(sons), all moved on.

    '56 S1,been in the family since...'56
    Comes out of hibernation every few months for a run

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    So that’s around 600 000km.....not many petrol cars get that many k’s up, most are on the scrap heap by than.

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    So that’s around 600 000km.....not many petrol cars get that many k’s up, most are on the scrap heap by than.
    But they would if they had $68K spent on them. LOL.

    Regards Philip A

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    Quote Originally Posted by PhilipA View Post
    But they would if they had $68K spent on them. LOL.

    Regards Philip A
    1. At 600K a comparable petrol car would have burnt that much in fuel leaving nothing over for repairs.

    2. I doubt that many Tesla owners would have a battery replaced under warranty, they just don't drive far enough. Say 5% do and the numbers look better already. A few high visibility customers getting extra service is good for the image.

    3. $34K might be the cost of a new battery, but the battery is modular and individual blocks of cells can be swapped out and the battery made available as a warranty replacement for suitable customers, or used as a loaner while their own is repaired. The net cost of a warranty claim could be as little as $5K. The second battery swapped out of the high mileage car mentioned had cell balance issues and would be an ideal candidate for repair.

    4. Battery production is still ramping up at the GF so capital costs aren't dropping much yet but will soon enough. The longer you can wait for a replacement battery the cheaper it gets to build.

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    As a side effect think of recycling, Tesla battery replacement provide a ready source of used modules for classic conversions.

    UnServiceble battery pack may only have one faulty module, A faulty modules may only have a few faulty cells.

    Im my limited experience I had one cell that would charge before the others and another discharge before the others, it made the whole pack capacity lower than it was in reality. Replaced those two bad cells and I have increased my range by 30%

    A good Tesla module could be made by testing and swapping Individual 18650 cells about. Not viable in a business plan but perfect for DIY .

    , this RRC has old Tesla modules


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