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Charging Above Set-Point with New Update

Discussion in 'Model X' started by LoveMX, Nov 16, 2019.

  1. LoveMX

    LoveMX Member

    Joined:
    Aug 17, 2018
    Messages:
    88
    Location:
    SoCal
    Did anyone else notice that when the charging is scheduled (scheduled departure option) to a certain percentage, it's always charging above that set-point after the latest software update?

    I scheduled the charge to 90%, but it stops at 93% and sometimes at 92%!

    However, I didn't notice this behavior at the supercharging station, yet.
     
  2. K2500Z71

    K2500Z71 Member

    Joined:
    Jul 17, 2019
    Messages:
    170
    Location:
    Upstate NY
    Yep. Same thing has happened to me. Only when scheduled departure is enabled apparently. I’m guessing that the 3% power increase with the new update has altered the battery calibration in some way.

    You’ve probably noticed that the charging limit in your app mysteriously bumped up to 93% also. Readjusting it won’t fix the problem though
     
  3. aesculus

    aesculus Still Trying to Figure This All Out

    Joined:
    May 31, 2015
    Messages:
    4,078
    Location:
    Northern California
    Just speculating here:

    I wonder if the algorithm is based on it needing to end the charger at a certain time vs filled up by that time so it's approximate. This would be the case that you wanted your battery pre-heated for example prior to departure so it did not have to heat it as you started to drive. Otherwise it could be the case the charging might end 30 minutes before when it reached your setpoint and then cooled down during those 30 minutes.
     
  4. LoveMX

    LoveMX Member

    Joined:
    Aug 17, 2018
    Messages:
    88
    Location:
    SoCal
    Hope they can fix this with the next update.
     
  5. scottf200

    scottf200 Active Member

    Joined:
    Feb 3, 2013
    Messages:
    3,529
    Location:
    Chicagoland ModelX S603
    Mine is set for 70% and that is exactly the % it stops at. (Monitored by TeslaFI.COM).

    My ending times are early than my scheduled times by ~30 min. I am not having it run the HVAC (unchecked).

    Tu 04:22 (vs 05:00 scheduled)
    We 03:25 (vs 04:00 scheduled)
    Th 03:33 (vs 04:00 scheduled)
     

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