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Battery Won't Charge Past 41 miles P85 2012 ModelS 110k miles driven

Discussion in 'Model S: Battery & Charging' started by rwang, Dec 15, 2018.

  1. rwang

    rwang New Member

    Joined:
    Jan 9, 2013
    Messages:
    4
    Location:
    Seat 2B
    we hit an issue with the battery last week where we no longer can charge the battery past 41 miles. Seems like a lot of the cells are out. Looks like we'll get a replacement battery

    Anyone else with this issue? Please share!
     
  2. Akikiki

    Akikiki A'-Lo-HA ! y'all

    Joined:
    Nov 26, 2012
    Messages:
    5,728
    Location:
    Kaneohe, HI
    Smells like a battery that is become unbalanced. Refusing to charge from a low range is an indicator I had a '13 P85. I think it was more common in '12 and '13. We don't hear of it in more recent years. Even with 110K miles I think the battery is still covered under warranty.
    You will get a reconditioned battery. It will be great. You can look forward to 90% charge to be about 2-3 miles better than yours was when brand new. Don't consider this a bad thing. You are going to be very pleased with the outcome.
     
    • Like x 1
  3. Max 2018

    Max 2018 New Member

    Joined:
    Jan 29, 2019
    Messages:
    3
    Location:
    Quebec
    One morning my 2014 S battery was just dead, car was towed to service center need battery pack replacement under warranty + need new CPU which can no longer accept up grades due to memory saturation this was not on the warranty did cost $3000,00
     
    • Helpful x 1
  4. Akikiki

    Akikiki A'-Lo-HA ! y'all

    Joined:
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    Memory saturation? Never heard of that. If you can get more detailed info from SC about this, please come back and tell us.
     
  5. Lasttoy

    Lasttoy Active Member

    Joined:
    Mar 24, 2017
    Messages:
    1,527
    Location:
    St Augustine, Fl
    U will get a 90. Dont make 85 anymore. Re badged.
    Man at SC told me we could pay extra and get a 100 battery . He said they were same pack, it was all done with sw reprogramming .
    You should ask. IN WRITING to Tesla via your account.
     
  6. ucmndd

    ucmndd Well-Known Member

    Joined:
    Mar 10, 2016
    Messages:
    5,386
    Location:
    California
    The fact they don’t make them any more isn’t really relevant. They don’t make the 90 either. I’m sure they have a constant supply coming in from warranty replacements that are repaired and reconditioned then returned to service. Luck of the draw.
     
    • Like x 1
  7. Snowstorm

    Snowstorm Active Member

    Joined:
    Dec 8, 2016
    Messages:
    1,474
    Location:
    Ontario Canada
    Probably MCU flash issue. Flash memory can only be written to so many times before failure. So it ages out. Now, why they need to replace the entire MCU is beyond me, it should be possible to swap the memory chip to repair it. I guess they are taking the old one to do that so it will go in another car to be repaired? If you paid $3000, did you get your old MCU back?
     
  8. Tam

    Tam Well-Known Member

    Joined:
    Nov 25, 2012
    Messages:
    8,022
    Location:
    Visalia, CA
    I think it's Tesla's efficiency: Just swap the whole component out instead of replacing the chip. It's faster for your technicians but it costs much more for customers.

    I think MCU memories are soldered so it takes longer to replace.
     

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