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Phantom drain...

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

  1. kirkbauer

    kirkbauer Member

    May 31, 2015
    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

    Apr 2, 2014
    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

    Nov 3, 2009
    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

    Mar 21, 2013
    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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