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Upgrading battery pack from 75Kwh to 90Kwh

Discussion in 'Model S: Battery & Charging' started by pers1, Oct 12, 2016.

  1. pers1

    pers1 Member

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    I wanted to upgrade my facelift 75D's 75Kwh battery pack to 90Kwh, but was innformed that it was technically possible as the 75D isn't technically compatible with 90Kwh pack.
    Reason why I want to upgrad the pack not trading in for a new 90D car is I've used over $6000 in paint correction, 5 layers of opticoat Pro + and my better my wife would blow a fuse or 2 if I after a couple of month in the new car buy a new one!
    Happy wife happy life.

    But down to the matter I find it strange that the service center says that I can't buy and upgrad battery to 90Kwh as it's not possible as those to cars are technically different and not compatible.

    PerS
     
  2. No2DinosaurFuel

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    I think right now tesla doesn't want to give you that option. Even if it did you will be paying more than the difference. I.e. It might be better to sell your current car and buy a 90D.

    I guess one way is to covertly buy a similar looking 90D and trade in your current car so your wife doesn't know.

    Or you can try to sell your car seperately and see if anyone is willing to pay more for the extra paint correction you did. Then use that money to buy the 90D?

    Eany option is expensive so chalk it up if you are serious about the upgrade.

    Your final option is to wait for a few years and I am sure tesla will offer battery pack upgrades then.
     
    • Like x 1
  3. Max*

    Max* Autopilot != Autonomous

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    This. Exactly this.

    Didn't wk057 put an 85kwh battery into a 60kwh car? I thought it's possible to do it. But Tesla just doesn't want to.

    Also, the upgrade from 85kwh to 90kwh was $22.5k IIRC ($25k - $2,500 return core charge), so it would be cheaper for you to sell your car and get the 90D instead and redo the paint protection.
     
    • Like x 1
  4. Muzzman1

    Muzzman1 Member

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    @pers1
    Get a new car, don't tell your wife, and know that you spent ENTIRELY WAY TOO much on paint correction.
     
  5. scole04

    scole04 Member

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    wk057 confirmed this is possible to upgrade technologically. Tesla would rather you trade it in and buy a new one.
     
  6. pers1

    pers1 Member

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    #6 pers1, Oct 13, 2016
    Last edited: Oct 13, 2016
    I want to keep the Model S as the paint work was very good when i recived it, just a repaint touch up had to be done, my first S well was challenged paint wise +++.

    So for me I would rather pay extra for the battery then trading in.
     
  7. pers1

    pers1 Member

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    Got this email from Tesla"
    Hej Per,


    I have double checked this and I regret to confirm that it's currently not possible to upgrade from a 70 kWh battery to 90 kWh. I am really sorry about this.


    Please let us know if we can help you with any related questions about this or anything.

    Med vänliga hälsningar / Best regards,

    S... ... | European and Australian Technical Support Specialist"
     
  8. mikeash

    mikeash Active Member

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    It may well be possible technically, but I recall that Tesla wanted something over $20,000 to upgrade an 85 to a 90. 75->90 would probably be more. Even with your big investment in paint correction and such, I doubt it would be worth it.
     
  9. Canuck

    Canuck Active Member

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  10. Max*

    Max* Autopilot != Autonomous

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  11. Canuck

    Canuck Active Member

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    Yes, just like we won't be seeing upgrades from AP1.0 to AP2.0 when it comes out, in my view, since the service centres are too busy as is to start doing retrofits and upgrades. Plus, it's much better to sell new vehicles than upgrade old ones.

    I was just pointing out that it can, and has, been done.
     
    • Like x 1
  12. wk057

    wk057 Senior Tinkerer

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    They've made some relatively minor changes to the pack connections since the release of the Model X, which would require a few other parts to be changed to do so, but a facelift car would have no issue, from a technical and mechanical perspective, accepting a newer larger capacity pack. They could literally have it done in an hour.

    Tesla simply doesn't want to do pack upgrades. Every pack upgrade they do is potentially a new car they won't sell. Why do upgrades/retrofits on things when you can just try and sell a whole new car instead? Looks better for them on paper. No matter how you look at it, Tesla will never make as much money on a retrofit/upgrade as they would with you trading in and buying a new car. And people wanting retrofits will never pay enough to make them the same profit, since it wouldn't make sense.

    So, while the upgrades are possible from a technical perspective it makes no financial sense for Tesla to do them at this point.
     
    • Informative x 3
  13. Canuck

    Canuck Active Member

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    So you're my only hope in upgrading my Classic S to AP... and I've burned my bridge with you some time ago. ;)

    But oh how nice my large frunk, 80 amp charger Classic S would be with AP and a Karstyle facelift... damn!
     
  14. wk057

    wk057 Senior Tinkerer

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    #14 wk057, Oct 13, 2016
    Last edited: Oct 13, 2016
    Well, as mentioned elsewhere, I won't be doing any additional AP retrofits. The one I did for my wife's P85 was enough. Too time consuming, mainly.

    Physical pack upgrades, perhaps... but I'm not sure it'd be worth giving up the 8-year warranty... so, would only really make sense for the older 60s I'd guess.
     
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  15. glhs272

    glhs272 Unnamed plug faced villian

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    Wk I am rolling through the miles on my 60 rather quickly. I expect by around this time next year my battery/drive unit warranty will be expired. I have dreams of buying a good used 85 battery and swapping it out with my 60 battery, then turning my old 60 battery into stationary storage.

    My understanding of the process is:
    -Gain "root" level access to the MCU opertating system by removing it and applying a hack (currently not known to me), re-install MCU.
    -Physically swap batteries
    -Change settings in car diagnostic menu to show 85 battery vs. 60 battery, or re-flash firmware?
    -Car sees 85 battery, go drive.

    More or less correct?
     
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  16. nagypite

    nagypite Member

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    wait some months then buy a 100d with AP 2.0 and trade in the 75d
     
  17. Zaphod

    Zaphod Galaxy President (former)

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    Is the 35 mile difference between 75D and 90D really that important to you? The only other difference is the 1 second difference between 0-60mph. If so, you should have went for the 90D from the start.

    I can see Tesla offering pack upgrades/swaps in the future, but for reasons as the others pointed out, it just doesn't make sense for them right now.
     
  18. WannabeOwner

    WannabeOwner Member

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    Plus faster supercharger miles-replenish?

    I ordered the 85 but it was phased out and I had to upgrade my order to 90 (or downgrade to 75). I did not initially want to pay the money for the extra few miles (between 85 and 90), but given that my hand was forced on that the reality has been that the 90% daily-charge miles has provided range-comfort on a number of journeys. Its a hard call to buy "just a few more miles" at the initial purchase point though.
     
  19. gaswalla

    gaswalla P4201/85/airsusp/pano/19i

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