TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker or making a Paypal contribution here: paypal.me/SupportTMC

0 miles rated range

Discussion in 'Model S: Battery & Charging' started by wcfinvader, Nov 30, 2015.

  1. wcfinvader

    wcfinvader Member

    Joined:
    Jul 2, 2014
    Messages:
    199
    Location:
    Aurora, NE
    20151129_202254.jpg

    20151129_202327.jpg

    So yesterday we went 3 miles after it hit 0 rated miles. This got me wondering how far can you drive after you hit 0? Our 3 miles was basically 30mph-40mph the entire time. Anyone else run into this yet? We were expecting it to shut down right at zero considering we have a Leaf and that's when it shuts down.
     
  2. cgiGuy

    cgiGuy Member

    Joined:
    Jul 9, 2013
    Messages:
    983
    Location:
    Sacramento, CA
    Mine has shut down with 2 rated on the dash still.. be careful with that.
     
  3. wcfinvader

    wcfinvader Member

    Joined:
    Jul 2, 2014
    Messages:
    199
    Location:
    Aurora, NE
    That's good to know. Thankfully we were very close to home so I was just going to walk home and grab the other car and chain to tow it home if need be but no worries we don't plan on doing that again.
     
  4. efusco

    efusco Moderator - Model S & X forums

    Joined:
    Mar 29, 2009
    Messages:
    4,590
    Location:
    Nixa, Missouri, United States
    #4 efusco, Nov 30, 2015
    Last edited by a moderator: Mar 13, 2016
    Here's my experience :
     
  5. apacheguy

    apacheguy Sig 255, VIN 320

    Joined:
    Oct 21, 2012
    Messages:
    3,718
    Location:
    So Cal
    #5 apacheguy, Nov 30, 2015
    Last edited: Nov 30, 2015
    OP - Did you observe any change in your rated miles at 90% (or 80 or whatever you charge to) upon the subsequent charge completion? There are folks that claim that the zero mile buffer is merely a range calibration fault and that the algo quickly readjusts upon discovering range below zero.

    LOL. I remember your thread on that. It's nice that it went into a sort of "turtle mode" before shutting down so at least you knew it was coming. Some folks report no such indications with the car still showing miles and abruptly shutting down. I would love to the know the technical explanation here.
     
  6. bredi

    bredi Member

    Joined:
    Jun 9, 2014
    Messages:
    202
    Location:
    San Francisco

    With the Leaf? Please take a photo! :)
     
  7. Soolim

    Soolim Member

    Joined:
    Jun 11, 2015
    Messages:
    849
    Location:
    Vancouver, BC, Canada
    Hi OP, what version of firmware do you have. It appears that your have the classic with the power meter intact, plus the toy car.
     
  8. Chipper

    Chipper Active Member

    Joined:
    Sep 23, 2013
    Messages:
    1,182
    Location:
    Chattanooga, TN
    You went 178 miles averaging 361 WhM and ended with 0. I certainly would have been averaging a WHOLE BUNCH LESS in order to preserve mileage and battery!
     
  9. wcfinvader

    wcfinvader Member

    Joined:
    Jul 2, 2014
    Messages:
    199
    Location:
    Aurora, NE
    We normally have 241 rated miles at 100% and we fully charged yesterday and it charged to 241 rated miles still. We have Version Version 7 2.7.56. Pre-Autopilot. And We've towed many of things with the leaf around the yard. We haven't towed a car with it yet but have towed very large tree branches. With the tow eye and the rear tow hook on the leaf it would be fairly easy to tow the tesla with the leaf (It would be a way that tesla does not recommend (4 wheels down) but for only a few miles it'd be fine.

    Chipper I live life on the edge. My wife is always a little frustrated with me because I like to get to wherever were going with as little juice left as possible. Normally I do start off slow then use up the excess later in the trip. This time I did the opposite which is why I nearly hit shutdown.
     
  10. Max*

    Max* Autopilot != Autonomous

    Joined:
    Apr 8, 2015
    Messages:
    4,872
    Location:
    NoVa
    Good thing it never rains or gets cold where you are!
     
  11. widodh

    widodh Model S R231 EU

    Joined:
    Jan 23, 2011
    Messages:
    4,822
    Location:
    Middelburg, The Netherlands
    You should mainly watch the power limiter.

    You were still at 80kW. It shuts down somewhere in the 20kW range.
     
  12. Candleflame

    Candleflame Member

    Joined:
    Mar 9, 2015
    Messages:
    249
    Location:
    UK
    i read somewhere that the model S used to have reserve miles (?20), but then they increased the typical range by 20 miles and 0 now actually means 0. The reason why you can still drive on for a bit is because the range estimation is just an estimation and might get it wrong. So there is a chance your card might shut down exactly at 0 but equally it could be -5 miles or if really unlucky at 2 miles.
     
  13. deonb

    deonb Active Member

    Joined:
    Mar 4, 2013
    Messages:
    3,020
    Location:
    Redmond, WA
    No? The power meter isn't intact.
     
  14. brantse

    brantse Member

    Joined:
    May 18, 2015
    Messages:
    398
    Location:
    Somerset, PA
    and with the heat on high :eek: I realize there is a buffer and this certainly probably didn't cause any issues, but you do realize that going very low is really bad for the battery, right? Ever hear the term "bricking"?
     
  15. apacheguy

    apacheguy Sig 255, VIN 320

    Joined:
    Oct 21, 2012
    Messages:
    3,718
    Location:
    So Cal
    Is that a reliable indicator? I have no personal experience but I seem to recall the car shutting down on folks with several miles remaining and the power meter limiter > 100 kW.
     
  16. Lex

    Lex Member

    Joined:
    Apr 23, 2015
    Messages:
    658
    Location:
    Toronto, Canada
    I don't fear running the pack to 0% as long as I can plug in immediately. It is leaving the battery at zero that is "really bad".
     
  17. wcfinvader

    wcfinvader Member

    Joined:
    Jul 2, 2014
    Messages:
    199
    Location:
    Aurora, NE
    ...and that's exactly what we did. It only sat for maybe 5 mins. It was cold in the car and when we knew we'd make it home we turned the heat back on because keeping a 4 month old child warm is much more important than and damage that could be done to the car.
     
  18. Discoducky

    Discoducky Active Member

    Joined:
    Dec 25, 2011
    Messages:
    2,884
    Location:
    Seattle
    The ability to go beyond 0 rated range most likely is based on a complex algorithm which you could expect is computed to be less miles when it is very cold or very hot or is very hilly. For instance, it might have the most range beyond 0 if you are driving along on a flat road at 40mph during the daytime at 70 degrees F. Anything outside of this 'ideal' would cause the range to be reduced and you could go to stopped very quickly...YMMV
     
  19. ecarfan

    ecarfan Well-Known Member

    Joined:
    Sep 21, 2013
    Messages:
    10,366
    Location:
    San Mateo, CA
    This has been discussed many times over the past 2+ years that I have been on TMC, I suggest searching the site and you will find other, very lengthy, discussions.
    How far you can drive after the display shows zero varies based on numerous reports of people actually doing it, from none to over 12. Regardless, it is a risky thing to do. You may get stranded.
     
  20. FlasherZ

    FlasherZ Sig Model S + Sig Model X + Model 3 Resv

    Joined:
    Jun 21, 2012
    Messages:
    7,019
    ...and there have been cases of cars shutting down with some miles left. Tesla's trip planner targets 20% minimum charge and will send you to a supercharger if your destination can't be reached with 20% or more left.
     

Share This Page