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Why has my 90% charge estimated miles amount increased?

Discussion in 'Model S: Battery & Charging' started by brucet999, Jan 24, 2016.

  1. brucet999

    brucet999 Active Member

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    S 70 delivered 11-19-15 with 90% charge reading 210 rated miles.

    Every subsequent 90% charge yielded the same 210 rated miles. Suddenly the most recent two 90% charges have read 217 and 218 rated miles respectively on the charging window of the 17" display and on the dashboard display. Both of those charges were after the most recent ver 7.1 update.

    Total miles now is just over 2,000. Wh/mile since last charge, as displayed on the instrument panel, is running just under 290 in mixed city streets and freeway driving with TACC set to 70mph.

    Did Tesla change the SOC algorithm, perhaps using the car's recent average Wh/mi history instead of EPA rated usage? 218 miles at 90% equates to 242 miles at 70 kWh full charge.
     
  2. CHG-ON

    CHG-ON Still in love after all these miles

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    I want that! But I bet it is just a change to the algorithm. They adjust it all the time. Problem is that mine seems to drop a little...
     
  3. apacheguy

    apacheguy Sig 255, VIN 320

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    Tesla maintains that the algo was untouched, but you are far from the only one reporting increased apparent range. Obviously they did change something.
     
  4. DGM73

    DGM73 Member

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    That happened to me too last Friday. RWD 85 delivered on July 2014. At 90%, 342 km on typical since some months ago (350 when it was new). Then, this last friday it charged to 349 km with a 90% set up. Looked at the charging dashboard and then I saw that even when it was set to charge to 90%, it actually charged a bit more than the "dotted" line!! Changed to display % of battery instead of range and then it showed 92% of charge. Have not charged since them (not a lot of driving during the weekend), so not sure if this is a new consistent bug or what...
     
  5. FlasherZ

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

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    The algorithm does not take into account driving history. Temperature does tend to have an effect, see Displayed Range and Seasonality for more information.

    In addition, little tweaks to the algorithm occur occasionally and can affect it, but I haven't noticed a major change.
     
  6. jerry33

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

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    1) Check that range mode is off. There is a difference in the readings.
     
  7. Todd Burch

    Todd Burch Electron Pilot

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    I haven't seen a significant change in my indicated 90% range for the 7.0 or 7.1 releases.
     
  8. Joetnr1

    Joetnr1 Member

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    My 70 RW has had almost the exact same increase. Before 7.1 a 90% charge got me 209 miles every single time. Now I'm looking at 217.
     
  9. brucet999

    brucet999 Active Member

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    I don't know where to find range mode, much less to set it. Would a software update have changed such a setting without my intervention?
     
  10. jerry33

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

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    By default it's off. It located in Controls->Driving
     
  11. tezzla

    tezzla Member

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    Your 90% scroll bar might be set higher, I accidently set mine to 92% the other day. The Remote S app shows the charge percentage.
     
  12. brucet999

    brucet999 Active Member

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    I have not changed charge percentage setting.
     
  13. benjiejr

    benjiejr Technogeekextraordinaire

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    Something else interesting I noticed this weekend that I never noticed before and I haven't seen posted yet (sorry if I missed it), but when I turn on Max Battery it increases my Rated Miles by 2-3. I did not expect that. Once Max Battery switches back off it goes back to my usual Rated Miles. Anyone else notice this?
     

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