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Excessive Vampire Loss

Discussion in 'Model S: Battery & Charging' started by dredog03, Sep 24, 2015.

  1. dredog03

    dredog03 Member

    Jun 4, 2015
    Atlanta, GA
    Does anyone have any experience with excessive vampire loss, as in 3-4 miles per hour lost while parked?
    Generally my S60 with 27,000 miles might lost one mile when parked during a whole work day, but today is the third time in the last month it has experienced a much larger vampire loss from being parked for just a few hours. I keep range mode on and always connected off.
    This morning I drove 110 miles, then parked at the office with 45 miles of range left. When I went out to lunch 4 hours later, it was down to 32 - that's 3.3 miles lost per hour from being parked. Since it's 70 degrees and cloudy out, I never turned on the AC, so I am confused why I would be losing so much range. Last time it did this was Friday evening. I was parked for just over 5 hours and lost 23 miles, and that time the SOC was around 80%. Any ideas?
  2. Saghost

    Saghost Well-Known Member

    Oct 9, 2013
    A couple firmware versions back, Tesla introduced a new feature that would automatically pre condition the car using HVAC when it thinks you'll be headed to/from work. Is it possible that this is enabled and running to create the drain?
  3. green1

    green1 Active Member

    Mar 25, 2014
    Calgary, Alberta, Canada
    sounds like the automatic pre-conditioning. IMHO it was a very poorly thought out feature, nice idea but too often doesn't guess well.
  4. Only Trons

    Only Trons Supporting Member

    Jun 22, 2013
    Northern Virginia

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