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X versus S Supercharging...who gets the juice?

Discussion in 'Supercharging & Charging Infrastructure' started by IanMcL, Sep 19, 2019.

  1. IanMcL

    IanMcL Member

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    Location:
    Laverstock
    I was in Bristol yesterday and needed a charge to get home. Both bays at Cribbs Causeway, apparently spare.

    However, on arrival, 5 mins later, a Model X was charging.

    I started to charge my 2016 S in the remaining bay.

    15kw charge out of 130kw!

    I thought it might recalibrate but it did not. I even stopped and restarted the charging, but to no avail.

    That seems totally unbalanced and pointless for the 2nd vehicle.

    2/3 to 1/3 I could understand but 90% to 10% seems faulty and the word supercharger registered invalid!
     
  2. Ostrichsak

    Ostrichsak Active Member

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    Colorado, USA
    This is pretty well-known: First car in paired stalls gets 100% of their charge rate & 2nd car gets whatever is left of combined total.

    Lesson: select your charge bay based on not being paired with an occupied stall if charge rate is important.
     
  3. IanMcL

    IanMcL Member

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    When there are only 2 bays, that is pretty naff!
     
  4. Big Earl

    Big Earl bnkwupt

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    Springfield, VA
    It starts at 75%/25% but there was evidently a problem with the charger that resulted in lower output.

    Why is this in the Roadster 2020 forum?
     
  5. MorrisonHiker

    MorrisonHiker S 100D 2021.4.11

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    It's also possible the OPs battery already had a high state of charge, limiting the kW the Supercharger would provide.
     
  6. mociaf9

    mociaf9 Active Member

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    Assuming your battery was low enough that the car was capable of accepting a faster charge, then the hardware wasn't fully working properly. The second car to plug in should be getting up to ~30 to 36 kW if the first car is charging with a low battery. Once the first car's rate tapers to below 72 kW, the second car's rate will increase.
     
    • Like x 2
  7. IanMcL

    IanMcL Member

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    That is normal elsewhere. I was low. That is why I wondered if the big X was favoured. Sounds like equipment not doing its stuff . Thanks.
     

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