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Home Charging (JuiceBox) - 2020 MX slower than 2019 M3

Discussion in 'Model X: Battery & Charging' started by FairWeatherFan, Jan 3, 2020.

  1. FairWeatherFan

    Joined:
    May 25, 2019
    Messages:
    34
    Location:
    San Francisco Bay Area
    All, I just picked up a 2020 LR MX this week. Earlier this year, I bought a May 2019 build Model 3 LR AWD. I installed a dedicated 50 amp line to my garage, which I use with a JuiceBox (didn't install Tesla b/c we also have a plug-in hybrid Volvo).

    The M3 charges happily at 40amp, but the MX will only go up to 30 amp. I've set the charging rate on the MX's screen to both 40 and 48amp, but it still only charges at 30 amp. Since we're both sharing one charger now, charging speed kinda matters to us.

    Am I missing something?

    Thanks!
     
  2. _jmk

    _jmk Member

    Joined:
    Sep 4, 2017
    Messages:
    309
    Location:
    Finland
    Is the voltage ok? The car may limit the charging speed if the voltage drops too fast as it starts charging.
     
  3. hoss_vw

    hoss_vw Member

    Joined:
    May 6, 2019
    Messages:
    61
    Location:
    San Jose
    Weird @fairweather.. I have a JuiceBox 40 on a 50amp circuit and purchased a Model 3 Long Range in May.

    I'm looking to sell my XC90 T8 soon that I charge with the JuiceBox and pick up a long range Model X soon.

    Good luck, I'll pay attention to this thread.
     
  4. FairWeatherFan

    Joined:
    May 25, 2019
    Messages:
    34
    Location:
    San Francisco Bay Area
    Well, in a few days, the MX charging menu started letting me increase the amps past 30. So I now set it to 48, but it charges at the expected 40. I wish I could tell you I did something to fix it, but it just started working!

    We just sold our XC90 T8 on Saturday. The dealer (Walnut Creek Volvo) gave us a great deal... about $5,600 OVER CarMax and a local used car dealer. Obviously, private sale is best, but I don't have the time for doing that any more.
     

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