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 and becoming a Supporting Member. For more info: Support TMC

100 charge to 300 miles

Discussion in 'Model 3' started by ngogas, May 14, 2019 at 7:18 AM.

  1. Nocturnal

    Nocturnal Active Member

    Joined:
    Aug 23, 2018
    Messages:
    1,953
    Location:
    Kansas City
    As far as we no, it does not.

    This is probably a calibration issue. That would be a lot of degradation.
     
  2. SD_Engnr

    SD_Engnr Active Member

    Joined:
    Mar 24, 2016
    Messages:
    1,311
    Location:
    San Diego
    I've been told otherwise each of the 4 or 5 times I've had them look into it.
     
    • Like x 1
  3. Nocturnal

    Nocturnal Active Member

    Joined:
    Aug 23, 2018
    Messages:
    1,953
    Location:
    Kansas City
    If that were true then my gauge would always show like 200 miles. ;) Lifetime watts per mile for me is about 355.
     
    • Like x 2
  4. rhaekar

    rhaekar Member

    Joined:
    Nov 9, 2017
    Messages:
    266
    Location:
    San Diego
    Considering it used to be 316 not 310, it's more like just under 96% SoC. If you factor in the range boost we were supposed to get to 325, it's just over 93% SoC.
     
  5. GolanB

    GolanB Supporting Member

    Joined:
    Sep 22, 2018
    Messages:
    367
    Location:
    NYC
    TeslaFi shows some variability in the data collection on my vehicle (which still has relatively low miles). I've charged to a total of 100% 4 times since I took ownership, 50 times to 90% and 35 times to 80% in these estimates. It helps to see this on a chart over time and TeslaFi does a relatively good job of this.

    Here is how it looks for me:

    Screen Shot 2019-05-14 at 12.03.40 PM.png
     
    • Informative x 1
    • Like x 1
  6. SD_Engnr

    SD_Engnr Active Member

    Joined:
    Mar 24, 2016
    Messages:
    1,311
    Location:
    San Diego
    Exactly why I don't believe them.

    Thanks for that data point. What's your 90% and 100%?
     
  7. notAnExpert

    notAnExpert Member

    Joined:
    Aug 11, 2018
    Messages:
    295
    Location:
    Palo Alto, CA
    Mine is a 11/2018 made LR RWD and has about 2,800 miles on it. So my experience doesn't directly apply to you. But I haven't experienced any drop with 12.1.2. I think I have only charged it to 100% once to start a road trip. I normally charge to 60–80%. At the end of all my charges, the car always shows range in the right ratio to [email protected]%, whether I charge with supercharger or at home.

    I also check the car's battery percent and range once in a while using Tesla API (or using Tesla Stats app which does the same thing). It seems to track the advertised [email protected]% ratio. Tesla API rounds the battery percentage to integers. So the calculated range can vary 3-5 miles.

    Another thing I "feel" is that if I don't drive the car for a while, the range shows a slightly lower number, but is usually back to the [email protected]% ratio as soon as I finish a drive. I don't have enough measurements to prove that there is a correlation.
     
  8. ngogas

    ngogas Active Member

    Joined:
    Sep 19, 2018
    Messages:
    1,185
    Location:
    Utah
    I totally agree with what you are saying. And my number on my AWD matches exactly what you have on yours. So I'm thinking it's because of the firmware calculates the bms this way. Glad I'm in the same boat. Maybe 12.16 will have a new calculation ; we can only hope.
     
  9. RyanT

    RyanT Member

    Joined:
    Sep 9, 2014
    Messages:
    357
    Location:
    Portland
    I do 100% charges almost every weekend. I'm at 15,000 miles and just had a 310 charge the other day. I think the screenshot where it showed a little less than 100% was because the charge finished a few hours ago and he was loosing some range to the vamperic drain. You'll see the full charge amount only if it finishes right before you get in your car.
     
  10. DirtyT3sla

    DirtyT3sla Member

    Joined:
    Apr 17, 2019
    Messages:
    68
    Location:
    Holly
    No, it had finished the full charge minutes before. I did that on purpose. I stopped and restarted charging and got it to go to 306 miles. I've seen this happen the 2 times I've charged to 100%. And like I said, TeslaFi never recorded a 100% charge. It records all my 80% and 90% charges
     
  11. aronth5

    aronth5 Long Time Follower

    Joined:
    May 8, 2010
    Messages:
    2,150
    Location:
    Boston Suburb
    Why do you expect 310 mile range when some loss could certainly be due to battery degradation?
     
  12. ngogas

    ngogas Active Member

    Joined:
    Sep 19, 2018
    Messages:
    1,185
    Location:
    Utah
    Perhaps charging to 100% every weekend for you recalibrated the bms every week. Pretty nice that you have yet to see any degration doing so every week and at 15k. That is pretty good indication.
     
    • Like x 1
  13. ngogas

    ngogas Active Member

    Joined:
    Sep 19, 2018
    Messages:
    1,185
    Location:
    Utah
    I think you miss the point. I think we are trying to get a consensus of what we are seeing having own the car less then a year and have driven certain of miles. We wanted to see if it's the norm for that much degration or it it's calibration needed or firmware related. Certainly we don't all expect to have 310 miles.
     
    • Like x 2
  14. SD_Engnr

    SD_Engnr Active Member

    Joined:
    Mar 24, 2016
    Messages:
    1,311
    Location:
    San Diego
    13 miles of battery degradation in 4 months, and less than 3.5k miles? Yeah, no.
     
  15. GenoM3P

    GenoM3P Member

    Joined:
    Dec 4, 2018
    Messages:
    32
    Location:
    Winchester, KY
    Took delivery 9/2018. 12,000 miles. Have always charged to 90% at about 279. About a month ago it started down and now is stoping at 270 for 90%. Did the reset thing. Ran it down to 20 miles, supercharged to 100% and only got 295. Concerned. Seems like a sudden change. I almost always charge at home with an HPWC, 44 miles/hour.
     
    • Informative x 3
  16. ngogas

    ngogas Active Member

    Joined:
    Sep 19, 2018
    Messages:
    1,185
    Location:
    Utah
    I did have an SC look at my diagnostic on my battery about 3 weeks. They said my battery is fine and that there is a fix coming for the bms. They said something about showing everyone as being a bit lower. At the time; i had beta 9. So i bet the fix could be in 12.16... maybe...
     
  17. TexasEV

    TexasEV Well-Known Member

    Joined:
    Jun 5, 2013
    Messages:
    7,459
    Location:
    Austin, TX
    No. Rated range is rated range. The number displayed can be affected by charging history, though, as the BMS algorithm only estimates charge, it can’t measure it directly.
     
  18. GolanB

    GolanB Supporting Member

    Joined:
    Sep 22, 2018
    Messages:
    367
    Location:
    NYC
    I've read elsewhere that much of the degradation happens up front, but I haven't seen this data validated with the newer battery formulation in Model 3.

    At home, on our small appliances (dust-buster, drills) I've replaced a single cell in multi-cell unit battery packs when they stopped charging. At some point, I would imagine Tesla will start to offer modular replacement service as well on the Model3. In my limited experience servicing rechargeable batteries in home appliances, it is usually a small number of cells which fail that cause the bulk of the issues.

    I haven't seen a detailed analysis of battery pack failures yet in Model 3, so it's difficult to comment with any certainty. I would expect that in the next few years, we'll have better options available to us, and by the time our warranty lapses, we might have the opportunity (if we choose) to go to a higher density / lower cost battery. That said, with the rapid pace of innovation, driving (and therefore the cabin - lounge?) may be an entirely different experience in 8 years and we may want to trade in ;)
     
    • Like x 2
    • Informative x 1
  19. Nocturnal

    Nocturnal Active Member

    Joined:
    Aug 23, 2018
    Messages:
    1,953
    Location:
    Kansas City
    Haven't checked in a while. I mostly stick with percentage. I'll take a look.
     
    • Like x 1
  20. ngogas

    ngogas Active Member

    Joined:
    Sep 19, 2018
    Messages:
    1,185
    Location:
    Utah
    I'm surprised it does not have a sensor of some sort to at least test the charge level of each pack.
     

Share This Page

  • About Us

    Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.
  • Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


    SUPPORT TMC