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How many times have you supercharged

Discussion in 'Model S: Battery & Charging' started by lagann, Jun 5, 2015.

?

How many times you have supercharged

Poll closed Jul 6, 2015.
  1. >60

    31.9%
  2. 51-60

    1.1%
  3. 41-50

    5.5%
  4. 31-40

    7.7%
  5. 21-30

    11.0%
  6. 11-20

    17.6%
  7. 0-10

    25.3%
  1. lagann

    lagann Member

    Joined:
    Jul 1, 2014
    Messages:
    112
    Location:
    Boston, MA
    I've noticed a lot of people are wondering if there is a connection between supercharging and battery capacity loss. Personally, I have supercharged 46 times (including the last one that was abruptly cut short ;_;) in 23,000 miles, and i had about 1.3% battery loss. So really, I was wondering where about the average amount of times owners have supercharged.
     
  2. Max*

    Max* Autopilot != Autonomous

    Joined:
    Apr 8, 2015
    Messages:
    4,887
    Location:
    NoVa
    Did you calculate the 46 yourself/byhand? Or does Tesla keep track?
     
  3. lagann

    lagann Member

    Joined:
    Jul 1, 2014
    Messages:
    112
    Location:
    Boston, MA
    I calculated by hand. It might be off by 1 or 2.
     
  4. tinm

    tinm 2013 S85 Owner

    Joined:
    May 3, 2015
    Messages:
    1,138
    Location:
    New Mexico, USA
    I'm around 78 or 80 supercharges in just under 2 years. Done a bunch of long trips. Early on I could get 267 then 265 mi on a 100% charge. Now it's 261mi but it takes so long to go from 257 to 261 I usually give up around 258.
     
  5. yobigd20

    yobigd20 Well-Known Member

    Joined:
    Oct 28, 2012
    Messages:
    5,793
    Location:
    Skaneateles, NY
    1.3% is so negligible that you're probably seeing more battery imbalance rather than battery loss. Outside of the initial first 5-10k miles or so, at 70k miles my range is the same as it was at 10k. so basically no loss or than initial battery imbalance.
     
  6. Johann Koeber

    Johann Koeber Member

    Joined:
    May 1, 2012
    Messages:
    664
    Location:
    Nuremburg, Germany
    I use Superchargers a lot. Like several times a week. I use them on empty battery and to top off before a longer leg of a trip.

    When going to 100% I get 374 km; it was 400 km when new. So lost 26 km in 15 months and 88,000 km, about 6.5 %. It seems to hold this capacity for quite some time now, the greatest loss in range was at the beginning (first 3 months).
     
  7. Khatsalano

    Khatsalano Member

    Joined:
    Mar 21, 2015
    Messages:
    648
    Location:
    San Mateo, CA
    I haven't used SCs that much, maybe 10-20 times in 10,000 miles. There is definitely range loss, maybe 1.5% or so, but it's probably just due to general use. The first time I charged up my car to 100%, I got 278 miles (S85D). Now I get about 268 miles. Of course, the 278 was probably just a wonky occurrence.

    For the more typical 80% charge, I used to get maybe 212 miles. Now it's 209.

    - K
     
  8. GSP

    GSP Member

    Joined:
    Dec 28, 2007
    Messages:
    2,000
    I have Supercharged four times. Not a lot, but not bad considering that I don't even own a Tesla!

    As for the effect on battery life, I would not worry about it. Just use the supercharger whenever it is convenient.

    Plug-in America's Nissan Leaf owner's survey did not show any degradation from L3 charging, and long term tests have been done comparing 100% L3 vs. 100% L2 charging on the Leaf with no difference in life. I would expect the same result for Tesla L3 charging.

    GSP
     
  9. David99

    David99 Active Member

    Joined:
    Jan 31, 2014
    Messages:
    2,058
    Location:
    Brea, Orange County
    I'm at about 200 Supercharging sessions. I took many road trips and have many Superchargers around me. All of that in just 14 month of owning the car. I think it's hard to say if Supercharging is bad for the battery compared to normal charging. The way Tesla does is pretty much on the safe and conservative side. Plus they cool the battery during Supercharging. On road trips you usually never charge to 100% as it would take too long and you can reach the next station easily with just charging to 70% or less. I believe the impact on battery aging compared to normal charging is minimal.

    The only real side by side test I know of is done in two Nissan Leaf. One is only charged normal, the other one only quick charged on CHAdeMO. The difference in battery aging between these two test cars doesn't seem to be big despite the fact that the Leaf's battery isn't cooled and the charging rate doesn't taper off as the state of charge increases. Definitely worse for the battery.

    It's probably impossible for us to pin battery aging on one or the other thing. We all use our cars normally and all things we do and happen to the car influence the battery. My Supercharging use is definitely on the higher side but I also have 50k miles and live in a rather warm place. So who knows how much all of these things contributed to my car loosing about 5-6% so far. But then, did I really loose that much? There is a good chance, and I have some evidence for it, that my range calculation is lower than the actual battery aging. I almost never charge to 100% which is known to cause the range calculation to be less accurate over time. I just recently charging to 100% and when I drove I was able to drive 5 miles without the range number to go down at all. So clearly an indication that real capacity and the displayed 'rated range' didn't match up.
     
  10. Duma

    Duma Member

    Joined:
    Nov 16, 2014
    Messages:
    150
    Location:
    Pittsburgh, PA
    #10 Duma, Jun 6, 2015
    Last edited: Jun 6, 2015
    I am unclear how the information from this poll will be useful without controlling for the length of time and/or the number of miles. A selection of 0-10 from someone who has owned their car 1 month and drives a few thousand miles is very different from someone who has owned their car 2 years and is has many tens of thousands of miles. An additional confounding factor is that there are many more superchargers now than there were 2 years ago.

    Or is the purpose just to identify owners with extensive supercharging activity to contact for further detailed analysis about battery impact?
     
  11. jerry33

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

    Joined:
    Mar 8, 2012
    Messages:
    12,764
    Location:
    Texas
    By the end of July I'll have used SCs over 60 times. Today I'm between 30-40.
     
  12. tliving

    tliving Member

    Joined:
    Mar 8, 2014
    Messages:
    636
    Location:
    New England, USA
    Does anyone know if the car keeps track of it somewhere you can see? I looked via VisibleTesla details but it wasn't in there. I didnt count so don't really know.
     

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