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

Supercharging in range mode, slow?

Discussion in 'Model S: Battery & Charging' started by sbportech, Mar 6, 2016.

  1. sbportech

    sbportech Member

    Joined:
    Oct 4, 2015
    Messages:
    42
    Location:
    Solvang, CA
    Just got back from a long road trip from Salt Lake City back to CA along I80. With the temps in the mid 60's I put the car in range mode just to see if there was any difference in range, or how the car drove, I did not notice any. I was noticing that the supercharge speeds were low and thought it was odd that it was tapering fast and i was only getting 32kwh after the battery was at 45%, no fans were on like i usually hear when charging from low battery. After getting lunch at Lovelock, NV and the car had been charging for 40 minutes it was only at 60% I started doing a little investigation I saw that the car was still in range mode, I switched to to off and the fans then came off and the charge rate slowly started to climb. Has anyone else seen this? Is this normal, and if it is then make sure you switch range mode off when you come to a SpC. SW at 7.1 (2.12.126)
     
  2. mrElbe

    mrElbe Member

    Joined:
    Aug 17, 2014
    Messages:
    869
    Location:
    Stouffville, ON Canada
    Yes, this is normal operation. When in range mode, the battery does not get heated during the charging process.
     
  3. sbportech

    sbportech Member

    Joined:
    Oct 4, 2015
    Messages:
    42
    Location:
    Solvang, CA
    Ok, I don't think it is a heating issue, it seemed like a cooling issue. That does not seem to be good logic to me, when plugged into a SpC you would think that the car would change as fast as possible, also it would be nice for Tesla to let people know about it also.
     
  4. Maaz

    Maaz Member

    Joined:
    Oct 6, 2014
    Messages:
    224
    Location:
    Torrance
    Both my Model S are in range mode and they supercharge super fast. No issue here.
     
  5. David99

    David99 Active Member

    Joined:
    Jan 31, 2014
    Messages:
    2,055
    Location:
    Brea, Orange County
    Supercharging is temperature dependent, but if the ambient temperature is around 60 and you have been driving before, there is no limitation. It should charge at full speed. Range mode should not make any difference in these conditions. Range mode limits cabin heating and AC cooling and limits battery pack heating. But none of these things affect Supercharging. Unless there is a software bug.
     
  6. sbportech

    sbportech Member

    Joined:
    Oct 4, 2015
    Messages:
    42
    Location:
    Solvang, CA
    That is what I thought, but it make a difference for sure, switched it off and the fans then immediately came on and it went form 32kwh to 60kwh. I was the only one there so it was not a pairing issue. I talk with the service guys tomorrow and see if they have any ideas. Thinking it is a software issue, but if not easily corrected by just not using range mode.



     
  7. Max*

    Max* Autopilot != Autonomous

    Joined:
    Apr 8, 2015
    Messages:
    4,873
    Location:
    NoVa
    I SpC in range mode all the time, even on 7.1 xx.126, I didn't notice it being any slower.
     
  8. AWDtsla

    AWDtsla Active Member

    Joined:
    Mar 3, 2013
    Messages:
    2,135
    Location:
    NE
    Sounds like a bug. The range mode option is pretty terrible, IMHO. Cold weather people have been struggling with it for quite a while. i.e. won't heat battery while on shore power, won't heat cabin well while on shore power. This does not exactly contribute to "range".
     
  9. MikeBur

    MikeBur ManualPilot

    Joined:
    Dec 8, 2014
    Messages:
    579
    Location:
    Seattle, WA
    the following x-post (Chassis CAN Logging To ASCII Text Plus Graphing - Page 45) was on p85d, with range mode on, around 60F. As you can see the SpC session was pretty good.

    hope this helps. Cheers, Mike
     

Share This Page