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shore power for precooling when charging is scheduled?

Discussion in 'Model S: Driving Dynamics' started by Crispix, Aug 30, 2013.

  1. Crispix

    Crispix Member

    Joined:
    Jun 24, 2013
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    San Diego
    Perhaps a dumb question: Does the car still use shore power to precondition the car when plugged in and climate control turns on, even if I have a scheduled charge time?
     
  2. efusco

    efusco Moderator - Model S & X forums

    Joined:
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    Nixa, Missouri, United States
    Yes. Even if you just open the door, it begins drawing shore power with scheduled charging.
     
  3. FlasherZ

    FlasherZ Sig Model S + Sig Model X + Model 3 Resv

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    Jun 21, 2012
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    7,023
    Mine only does it if the climate control is on when I open the door. If the climate control is off, opening the door doesn't turn on the EVSE.
     
  4. mknox

    mknox Well-Known Member

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    Toronto, ON
    One thing I've wondered about (and should probably test) is what happens if you're charging at a reduced rate, the charging is under way, and you open a door activating the a/c or heat. Does the car "respect" the charge limit you've set, or does it add the HVAC load on top of the charging load (if both are still below the adapter's rating)?
     
  5. jerry33

    jerry33 S85 - VIN:P05130 - 3/2/13

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    Location:
    Texas
    It respects the charge limit you've set. I have mine set to 32 amps rather than 40, and it doesn't go above that. When pre-cooling, I can see the mph is slightly lower.
     
  6. strider

    strider Active Member

    Joined:
    Oct 20, 2010
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    3,199
    Location:
    NE Oklahoma
    Yep, Jerry is correct. I have seen the same behavior.
     

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