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Something wrong with my mph/rate of charge at supercharger?

Discussion in 'Model S: Battery & Charging' started by redi, Mar 14, 2015.

  1. redi

    redi 2013 P85+ with HumanPilot Technology

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    DFW, TX
    I happened to visit the new 135kw Ardmore Ok supercharger today and arrived with a little less than 30% SOC.

    During the visit I had 3 other cars (we were all on different superchargers (1,2,3)). Despite seeing 373V/155A at a peak I never saw a "mph" rate above 196mph, and it was often less even far short of the taper. I have noted in the past seeing a "mph" rate approaching as high as 290mph at other superchargers on my car.

    Thinking I may have been on a weak charger, I swapped with one of the other guys (moving from 3 to 1) and still saw identical numbers charging my car.

    The other guys at similar SOC were seeing 270-290mph. All were 85, one a year older than mine, one almost brand new.

    Anyone have any idea why my effective charging speed (mph) has diminished in spite of what I observed others getting today under identical (time, temp, SOC, V&A) conditions?

    Thanks

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  2. markb1

    markb1 Active Member

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  3. redi

    redi 2013 P85+ with HumanPilot Technology

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    Upon digging around, I found an old screen capture that showed significant higher amperage, which must explain the difference.

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  4. FlasherZ

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

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    Yup. See the other thread. Call the supercharger number and report maximum of 60 kW charging, then file a ticket with your service center saying you only received 60 kW when charging at a supercharger.

    This assumes, by the way, that you're in a stall with no car in the other paired connection (e.g., you parked in 3A and there's not a car charging in 3B). If not, you were sharing current with another car that was charging.
     
  5. AndreyATC

    AndreyATC Member

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    I got some decent charging rate in CT
    20 miles before getting home
     

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  6. Lloyd

    Lloyd Active Member

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    Perhaps this is related to a specific Software revision? Perhaps it is temporary until the contactor which has been proactively replaced for some is complete for the fleet. Just a guess.
     
  7. FlasherZ

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

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    The contactors that are being replaced are the main pack contactors that tend to cause the dreaded "clunk", I don't think they're replacing the contactor that connects AC charger vs. DC battery.
     
  8. redi

    redi 2013 P85+ with HumanPilot Technology

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    #8 redi, Mar 14, 2015
    Last edited: Mar 15, 2015
    Yes. Granted a brand new 135kW supercharger. I happened to have visibletesla on at home and it shows ramping right up to 196mph. After about 15 minutes at 50% I moved over to stall 1 and saw the same thing but then the rate almost immediately started ramping down. I was plugged in for over an hour.


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