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Charging stopped at 98%

Discussion in 'Model 3: Battery & Charging' started by surfrasch, Dec 10, 2019.

  1. surfrasch

    surfrasch Member

    Joined:
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    Location:
    Hollis, NH
    I’ve read all the posts about loss of charging max since V10, same deal here but I noticed something a little different last two full charges.....

    I set my slider to full charge, it says 308 miles.
    It charges and stops at 304, says its full charge. Okay no different than others.
    Before I pull out of the garage I set up a trip on the GPS.
    I check the trip graph and it shows my trip starting at 98% charge.

    I find this strange, 98% at 304 would indicate a 310 full charge. I was under the impression that the graph % charge is quite accurate. If it’s accurate is there a reason why it would stop charging at 98%? It would seem this number is maybe just a calculation based on standard?

    quick pic of the graph if I can figure this out....

    A2E49B84-9A8C-4BEA-BB8F-06D79B54296A.jpeg
     
  2. WesB

    WesB Member

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    Location:
    Montreal, QC
    Did you set a departure time? Last week I had set the charge limit to 100% and I set a departure time but the car stopped charging at 95% and said charging completed.
     
  3. surfrasch

    surfrasch Member

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    Location:
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    no departure time, just normal charging.
     
  4. adrianp89

    adrianp89 Member

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    Pinellas Park, FL
    Same issue last night. Only change is V10.
     
  5. surfrasch

    surfrasch Member

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    I suspect it’s been doing this all along since I loaded V10 early October, I just never looked.
     
  6. ItsNotAboutTheMoney

    ItsNotAboutTheMoney Well-Known Member

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    Bjorn Nyland reported it stopping at 99%, maybe Tesla has updated their software to make it stop at 98%. :p
     
  7. surfrasch

    surfrasch Member

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  8. diezel_dave

    diezel_dave Member

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    Location:
    Utah
    Its because your battery is cold. When it heats up, the voltage will climb. If you charged it to 100% at a low temperature, once it heats up, it will be overcharged. My car does this too. Take your car on a spirited drive to warm up the battery then come back and charge it. I bet it goes all the way too 100% like mine does.
     
    • Informative x 1
  9. surfrasch

    surfrasch Member

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    Location:
    Hollis, NH
    That’s totally logical, temps in my garage around 45F to 50F at the time of charging, and car hadn’t been driven in 24 hours. Thanks!
     
    • Like x 1

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