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Vampire drain while plugged in normal?

Discussion in 'Model S: Battery & Charging' started by Patrick W, Sep 5, 2015.

  1. Patrick W

    Patrick W Active Member

    Joined:
    Mar 17, 2015
    Messages:
    1,232
    Location:
    SLC, UT
    When I leave my S plugged in without driving for a couple of days the rated miles very slowly decrease during that time.

    Is that normal?

    It only goes down a few miles during that time but it seems like if one leaves the car plugged in the battery would be kept topped off.
     
  2. rebra

    rebra Member

    Joined:
    Feb 25, 2015
    Messages:
    7
    Location:
    Norway
    Yes, it's normal. The car will recharge the battery after it has decreased a bit, and top it off.
     
  3. taurusking

    taurusking Member

    Joined:
    Jul 12, 2014
    Messages:
    878
    Location:
    East Texas
    Vampire drain refers to huge drain of the battery and not just few miles... Few miles decreasing over time is normal.
     
  4. David99

    David99 Active Member

    Joined:
    Jan 31, 2014
    Messages:
    3,337
    Location:
    Brea, Orange County
    I noticed that as well. For some reason the car is not topped off every 24 hours, but there is a certain threshold of lost charge before it tops off again.
     

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