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Loss of charge in garage - not plugged in - as a test

Discussion in 'Model S: Battery & Charging' started by Tinky, Aug 8, 2015.

  1. Tinky

    Tinky Member

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    We parked our 85-D in our garage on 27 July and plugged in for a charge to 201 miles. We unplugged after charge complete and have left unplugged through today. We have not driven the car since 27 July. We are now at 146 miles. This is a loss of 55 miles in 12 -13 days. We live in Scottsdale so our garage is 90+ degrees 24 hrs a day at this time of the year. Any comments on this loss?!?! And is there a good reason to always leave the car plugged in?
     
  2. TexasEV

    TexasEV Active Member

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    #2 TexasEV, Aug 8, 2015
    Last edited: Aug 8, 2015
    The good reason is because the owners manual says so. Several times. In large print. You really need to read the owners manual on this car even if you haven't on any other car. This is unlike any other car you have driven. You don't know what it is that you don't know.

    Remember, "a connected Model S is a happy Model S".

    And RTFM.
     
  3. Tinky

    Tinky Member

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    What do I do when I have to park it at the airport for 2 week?
     
  4. TexasEV

    TexasEV Active Member

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    Most airports have places for EVs to plug in, but if not you're ok as long as the 146 miles of range is enough to get you home. Or charge up to 90% before you leave to have even more range.

    Plug in whenever you can doesn't mean you can't leave it unplugged for two weeks, but if you're able to plug in (such as in your garage) you should do so.
     
  5. Doug_G

    Doug_G Lead Moderator

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    There is a power saving option on the touch screen. It lets the car shut down the touchscreen and console. That saves standby power but the car takes longer to boot up again when you get in.
     
  6. AmpedRealtor

    AmpedRealtor Active Member

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    Hi Tinky,

    I live in Buckeye. I don't normally track the vampire loss, but I was curious when I recently had my car parked on the street in San Diego for three days. I took a reading when I parked the car and then 72 hours later. I lost an average of 1.3 miles per day, the temps were in the 70s on average. Here at home, in the desert heat, I seem to lose about 2-3 miles per day. I have my Energy Saver setting turned ON, and "always connected" is turned OFF. Even with always connected being off, my app still connects within 10-20 seconds.

    Have you checked your energy saver preferences under Controls/Settings/Displays?
     
  7. Tinky

    Tinky Member

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    Thank you AmpedRealtor

    thank you and we will contact you when near Buckeye. Nice SC site there. We topped off there on our way back from California because the quartzite supercharger was giving very low power.
     
  8. Polly Wog

    Polly Wog Member

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    @Tinky, like AmpedRealtor, I have my energy saving on and always connect off. My Tesla has beeni in transit since July 20th. In the 19 days my car has been in transit, it has lost 40 miles of range, or just over 2 a day.
     
  9. Tdriver

    Tdriver Member

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    I also loose about 2-3 miles per day here in the heat of Palm Desert. I keep always connected on and savings off. I keep the garage about 88-90.
     
  10. mknox

    mknox Well-Known Member

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    FWIW, I might lose 2-3 miles of range in 4 or 5 hours with Energy Savings OFF, Always Connected ON.
     
  11. tomas

    tomas Traded in 9 rep bars for M3, used to be somebody!

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    Just keep in mind that - for battery life - best state of charge for long term parking is 50%. It is not good to leave charged for weeks or months at 80 or 90%. Clearly if you have plug available (even 110), best to set charge level at 50% and leave plugged in. If no plug available, suggest you set to 60% and turn energy savings ON and always connected OFF.
     
  12. Olle

    Olle Member

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    Your loss is probably due to energy used for battery cooling.
     
  13. gg_got_a_tesla

    gg_got_a_tesla Model S: VIN P65513, Model 3 Res Holder

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    Left my car at 90% two weeks ago, unplugged, in my garage (with an insulated door) ahead of a long vacation. Always connected ON. Bay Area weather has apparently been not too warm in the past few days.

    Been checking with the remote app on and off. It's down to 68% now.
     
  14. tomas

    tomas Traded in 9 rep bars for M3, used to be somebody!

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    quite a contrast from egolf,eh? Mine has been sitting unplugged for 1 month with no detectable loss.
     
  15. AmpedRealtor

    AmpedRealtor Active Member

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    The eGolf also sports a largely analog instrument cluster, not a digital display like Tesla's, and it lacks a large touch screen. One or both of these components have been shown to stay warm even after the car goes to sleep, so something is still creating heat in those components even though the car is sleeping. It's my unscientific opinion that Tesla accepted a design tradeoff somewhere related to these components.
     
  16. gg_got_a_tesla

    gg_got_a_tesla Model S: VIN P65513, Model 3 Res Holder

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    Yeah, the eGolf has indeed stayed put at where it was left at. Not a mile of range lost. The remote app connection (that does take a long time to establish) doesn't seem to incur a significant penalty.

    This is one of those things that Tesla hasn't gotten quite right. It's just wasteful. With the deeper sleep mode with Always Connected OFF, I guess the losses may not have been as high.
     
  17. TexasEV

    TexasEV Active Member

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    Why would you do that? (The leaving it unplugged part, not the checking with the remote app part.)
     
  18. Barry

    Barry Member

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    Is parking at PHX that cheap where it pays to bring your own car for that long vs. taking a taxi, limo or Uber?
     
  19. Blu Zap

    Blu Zap Grinning member

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    I lose about 1-2 miles a day to vampire drain in the mild Bay Area climate. If I needed to park it at an airport for more than a couple of days, I'd probably take an airporter bus. Some airports, like SFO, do have valet parking and they can plug it in before your arrival.
     
  20. gg_got_a_tesla

    gg_got_a_tesla Model S: VIN P65513, Model 3 Res Holder

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    The trip was not long enough that I needed to be worried about the SoC falling to too low a level. I'd rather not leave it plugged in lest there were thunderstorms and such (and apparently, there were some in the Bay Area while I was gone!).
     

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