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Model 3 only charges at 2kW

Discussion in 'Model 3: Battery & Charging' started by navinsiri, Jul 2, 2018.

  1. navinsiri

    navinsiri Member

    Joined:
    Jan 16, 2017
    Messages:
    238
    Location:
    Central NJ
    Everyday I plug in the Model 3 when I get home and the car will start charing at 9pm but only at 2kW. This only happens when the car starts charging itself when using scheduled charging. If I manually start charging then the car will charge at the full 48amps.
    Every night I have to go into the app and hit stop charging and then start charging a few seconds later. Does anyone else have this issue? We're using the Wall Connector wired for 60amps and the Model S never did this.
    Here's a video of what the app shows:
     
  2. jamnmon66

    jamnmon66 Member

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    Location:
    Brighton, CO
    That's pretty annoying. Mine's never done that. I think you should call Tesla on it.
     
    • Like x 1
  3. silentsnow31802

    Joined:
    Feb 26, 2016
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    Location:
    Napa, Ca
    Maybe it only needs 2kw to finish charging within your set schedule? Have you tried it with the battery at a much lower state of charge?
     
  4. dhrivnak

    dhrivnak Active Member

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    NE Tennessee
    I think you have a wiring problem. When you start you are at 252V but then it drops to like 238V. That is a LARGE voltage drop meaning you have a lose connection or an undersized wire. Check for heat and ensure connections are tight. If the Tesla sees a large voltage drop it backs off the current.
     
  5. Lloyd

    Lloyd Well-Known Member

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    There were some reports of model 3’s not playing well with gen1 HPWC’s
     
  6. navinsiri

    navinsiri Member

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    Jan 16, 2017
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    Location:
    Central NJ
    I just called and he said he never saw the issue before. He forwarded the logs to the diag team and I should get a call within a day or two. He also said they can send mobile service so they can get real time data as I reproduce the issue.

    I dont think the car knows when it has to be done by. There's no setting for that

    It drops from 241V to 232V. I'm not sure if a 9V (3.7%) drop is a lot, but I'll definitely double check the wiring where I can.

    I should've been more specific. This is a Gen 2 wall connector that is load sharing with another wall connector, but no vehicle uses that second wall connector.
     
  7. timk225

    timk225 Active Member

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    Location:
    Pittsburgh
    Does the problem happen if you use that other wall connector?
     
  8. jamnmon66

    jamnmon66 Member

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    Apr 10, 2018
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    373
    Location:
    Brighton, CO
    I'm interested if you find a solution. Please keep us updated if you have any luck.
     

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