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

Full charge 99%?

Discussion in 'Model 3' started by Darthbenji, Jul 5, 2018.

  1. Darthbenji

    Darthbenji Member

    Joined:
    Mar 27, 2018
    Messages:
    763
    Location:
    Ontario
    Taking a road trip and set it to charge full. It turned off at 99%. 308 miles. Is this normal that it doesn’t go to 100%. It’s the first time I’ve set it to charge to full.
     
  2. Sandiegodoug

    Sandiegodoug Member

    Joined:
    Apr 25, 2017
    Messages:
    557
    Location:
    SAN Diego
    Mine charged to 316
    It said had 30 minutes to go when I disconnected , this was at a supercharger that wasn’t very busy at the time.
     
  3. silentsnow31802

    Joined:
    Feb 26, 2016
    Messages:
    435
    Location:
    Napa, Ca
    Yes that is normal. It will not always make it to 100% when it says charging complete. I assume it has something to do with pack balancing.
     
    • Like x 2
  4. jdw

    jdw Supporting Member

    Joined:
    Jun 1, 2015
    Messages:
    368
    Location:
    Montreal, Canada
    Mine will sometimes stop at 98 or 99%, if I let it sit for an hour or so and then start charging again it will usually charge for a short while and then jump to 100%. When it jumps, both the percentage and the rated range will suddenly pop up to the correct values. I'm thinking it takes some settling and recalculation time.

    My last range charge stopped at 98% (265RM) and after letting it sit for 45 minutes and then restarting charging it popped to 100% (270RM) after a few minutes.
     
  5. Garlan Garner

    Garlan Garner Well-Known Member

    Joined:
    Mar 31, 2016
    Messages:
    9,693
    Location:
    Chicagoland
    99% hmmmm.

    Maybe Tesla should remove the percentage number and substitute it with a phrase like:

    Good Enough.
    I'm stuffed.
    All done
    I'll tell you watt..No more room for electrons
    I'll get you there....don't worry.
    I couldn't eat another byte.
    Boy...glad I got rid of all that Gas....lets go.

    lol
     
    • Funny x 7
  6. Garlan Garner

    Garlan Garner Well-Known Member

    Joined:
    Mar 31, 2016
    Messages:
    9,693
    Location:
    Chicagoland
    First song I'm playing in my Model 3.

    sing it with me...….I'm driving on sunshine, woooah, and don't it feel good!
     
    • Like x 1
  7. tashtibet

    tashtibet Member

    Joined:
    Jul 30, 2016
    Messages:
    182
    Location:
    fort collins, colorado
    set the charge to 90% and then half an hour before leaving set it to 100%-you'll see better difference!
     
    • Informative x 1
    • Like x 1
  8. Runnergirl

    Runnergirl Member

    Joined:
    Sep 26, 2018
    Messages:
    218
    Location:
    NC, USA
    Getting ready for little road trip- first time charging to full charge and it stopped at 306.
     
  9. Adrien

    Adrien Member

    Joined:
    Mar 30, 2016
    Messages:
    76
    Location:
    Huntington Beach
    What is most likely happening is one of the packs reached full charge first and thus stops the entire charge process. Don't worry over the next drive cycle the pack will turn on its internal resistors to balance back out with the others. What could have also happened is you did reach 100%, but then just over time it will vampire drain and reach 99% and that's just what you see hours later.
     
  10. RayK

    RayK Member

    Joined:
    Apr 5, 2016
    Messages:
    816
    Location:
    San Jose, CA
    There's a TSB that I just became aware of that says some HV battery packs may not have been assembled correctly. It can manifest itself by a reduction in vehicle driving range. I read that as not charging to the 311 miles everybody says it should. My car was built during this timeframe and I've never seen more than 306 miles on a full charge (at about 70-75F). I might bring this up the next time I'm at the service center but it's not a high priority thing for me at the moment. Really the 1-2% difference in range is much less than the losses seen at cold temperatures or having to run the A/C or heater for long stretches.

    No Model 3 fires to date
     
  11. ybbor

    ybbor Member

    Joined:
    Aug 1, 2017
    Messages:
    51
    Location:
    San Diego
    Same... my p3d+ goes to 99% with 296 miles shown as available.
     
  12. SeanM

    SeanM Member

    Joined:
    Oct 2, 2018
    Messages:
    104
    Location:
    Fairfax, VA
    Seems it's normal. My Model-3 charges at a steady rate up to 95%, after which it literally 'crawls' to 99% and then seems to stop for eternity, that's when I just stop charging. I only fully charge when going for long trips, else it's always charged around 85% tops.
     
  13. Jaywlker

    Jaywlker Member

    Joined:
    Nov 8, 2018
    Messages:
    217
    Location:
    North Scottsdale
    Do you know what the TSB is? Is there an identifying number for it? My first 100% charge was only 300 miles.
     
  14. RayK

    RayK Member

    Joined:
    Apr 5, 2016
    Messages:
    816
    Location:
    San Jose, CA
    I provided a link to the post here at TMC where I found out about it in my original post. The TSB is SB-18-16-010. The PDF is here.
     
    • Like x 1
  15. Jaywlker

    Jaywlker Member

    Joined:
    Nov 8, 2018
    Messages:
    217
    Location:
    North Scottsdale
    Thank you!
     
  16. SammichLover

    SammichLover Member

    Joined:
    Dec 8, 2018
    Messages:
    926
    Location:
    Yup
    #16 SammichLover, Feb 1, 2019
    Last edited: Feb 1, 2019
    Entirely normal when you try take it to 100% and it hasn't been near there for a while. Or ever. As someone else here mentioned, it has to do with the battery not being entirely "balanced". Which means the charge level is not even across all modules/cells in the battery. Taking the battery charge to 93% triggers the BMS to begin balancing the pack, and it will take a day or two to complete.

    The specific number 93% is confirmed for the Model S and just suspected for the Model 3. It seems to be the number though. So just take your battery up to 95% a day + before your trip. As a bonus it will charge much faster in the upper 90's when the battery is balanced, otherwise it can take an extremely long time near the top.

    Even with a recent balancing your battery won't hit 100% every time. But it'll do it more times than not.
     
    • Like x 1

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