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To plug in og not to plug in, that`s the question!

Discussion in 'Model S: Battery & Charging' started by taraquin, Feb 26, 2014.

  1. taraquin

    taraquin Member

    Joined:
    Jul 14, 2013
    Messages:
    68
    Location:
    Norway
    Untill recently Tesla adviced me to not plug in unless I had to charge due to errors etc when the charging completed (live in Norway), but a recent softwareupdate fixed this and now it just says charging complete etc. I know taht Tesla advises me to have the car plugged in at all times, but the circuit at home is a bit unstable, which still gives errors on rare occations. If the temperature is between 0-25C (always in shadows) and the car is not directly in the sun, keeping the car plugged in overnight seems to do nothing, even at a lot colder temperatures nothing happends which makes me wonder if it really makes a difference to keep it unplugged or not? I want my battery to have the longest lonevity possible, but if it doesn`t matter if I plug in or not I`d rather keep it unplugged... Any opinions?
     
  2. taraquin

    taraquin Member

    Joined:
    Jul 14, 2013
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    Location:
    Norway
  3. jerry33

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

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    12,753
    Location:
    Texas
    More or less: A plugged in Tesla is a happy Tesla. If the circuit is unstable, and you can't fix it, just lower the amps.
     
  4. Plug Me In

    Plug Me In Member

    Joined:
    Nov 29, 2012
    Messages:
    580
    Location:
    Central Virginia
    Warmer weather here in Virginia, USA but I don't always rest my car plugged in. Warm weather (> 15C) I'll charge up every 2 or 3 days. In winter I tend to plug the car in every night, but I haven't noticed that much difference in warm up times on the battery, etc. I do like to use shore power to pre-heat the car though in winter.
     
  5. Freeride

    Freeride Member

    Joined:
    Feb 5, 2014
    Messages:
    10
    Location:
    Norway
    I`ve been concluding to myself that the reason Tesla wants us to always plug in is:

    1) Protect the battery from bricking. Yes it doesn`t do this overnight, but it`s the same as holding a hand in the hand rails while going down the stairs.
    2) Protect battery from overheating or extreme cold. I`ve overheard a Tesla employee in Norway saying to customers that if the Model S is not plugged in, the BMS cannot start up any actions to prevent cooling or heating of the battery.

    I have no troubles understanding Teslas view on no 1. About no.2 I`ve been thinking about sending a mail to the more technical people in Tesla to get more information.
    I feel that I know too little about the BMS of the car. I want to know everything :tongue:

    I only plug my vechicle in to keep it between 40%-75%. My car is unplugged most of the time.
     
  6. glhs272

    glhs272 Unnamed plug faced villian

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    Aug 21, 2013
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    781
    Location:
    Burlington, WI
    I try to plug in whenever possible in order to keep the depth of charge as shallow as possible. @25,000 miles on my 60, I still get 208+ miles of rated range. So, this strategy appears to be working for me anyway.
     
  7. AmpedRealtor

    AmpedRealtor Active Member

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    Jun 30, 2013
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    Buckeye, AZ

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