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Phantom drain...

Discussion in 'Model S: Battery & Charging' started by kirkbauer, Jul 30, 2015.

  1. kirkbauer

    kirkbauer Member

    Joined:
    May 31, 2015
    Messages:
    574
    Location:
    Atlanta, GA
    My car has lost 9 miles of rated range in 40 hours, normal?

    I do have a dash cam with parking mode but that doesn't seem it would have much impact.
     
  2. Matias

    Matias Active Member

    Joined:
    Apr 2, 2014
    Messages:
    2,141
    Location:
    Finland
    There are many threads about this subject. Please look for "vampire drain".

    You lost approximately 1.7 kWh/24hrs, it is normal.
     
  3. Todd Burch

    Todd Burch Electron Pilot

    Joined:
    Nov 3, 2009
    Messages:
    5,414
    Location:
    Smithfield, VA
    I usually lose about 3 miles a day, as long as I have the car sleep, 'stay connected' is off, and I don't check on the car with the smartphone app. Otherwise, usage will go up a bit. It can also vary a bit based on ambient temperature or the cycling of your pack on to top off the 12V auxiliary battery.

    So you're in the ballpark, but probably a little higher than typical loss--perhaps due to one of my listed reasons.
     
  4. caddieo

    caddieo Member

    Joined:
    Mar 21, 2013
    Messages:
    876
    Location:
    Palm Coast, FL
    While I was away for 5 weeks, my iPhone app kept getting regular notifications every 3 days reporting on a charge of 9-10 miles back to the original charge end point. That works out to about 3-4 miles vampire loss a day and apparently within normal limits. The loss from the dashcam would be in addition to the normal vampire loss from the car's basic electronics.
     

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