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Intermittent charging problem

Discussion in 'Model S: Battery & Charging' started by WannabeOwner, Mar 9, 2017.

  1. WannabeOwner

    WannabeOwner Active Member

    Joined:
    Nov 2, 2015
    Messages:
    2,422
    Location:
    Suffolk, UK
    Just looking for advice on whether there is some simple cure for this - like "clean the contacts" :)

    Sometimes when I plug in dashboard says "Starting to charge" and "Charging will start in a few minutes" and then after 3 or 4 minutes says "Charging stopped".

    Unplug / re-plug doesn't seem to help, but something must fix it because on another occasion it charges OK.

    I *think* that if I plug in and get a dark-blue light then it will fail. If I plug in and immediately get a flashing green light then it will continue to charge without any problem.

    I have not had a problem at Supercharger, nor using household socket (here that is 13AMp and charges at about 4 MPH, too slow to be any use day-to-day)

    I have both a tethered cable wall charger (not Tesla, it wasn't "approved" at the time, but its similar) and also a Commando socket (using the UMC cable), Both have given me the same problem.

    Today I had the problem again (its been fine the last few days). In messing around I plugged the UMC into the car first and then did the Commando end second, and got the green light and its been fine. Was that just "lucky"?, or does plugging in car-end first and Commando-second achieve anything different?

    Obviously I can't use that trick with the tethered cable!

    It seems to me, but no strong feeling, that the problem has been worse (only occurred?) at times when we have had rain. My charger is outdoors, car is parked outside, I don't have a garage / covered charging. I have the same at work (also both same tethered charger and a commando), both have been fine since I got the car (7 months) - whatever the weather. I have not had the opportunity to take the car to work and try charging there since this problem started.
     
  2. Electric700

    Electric700 Active Member

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    1,248
    Location:
    Florida, United States
    If you found a way to charge reliably by plugging the connector into your car first, I think it won't hurt to keep doing that. Also it would be a good idea to clean the electrical contacts of both your connector and Commando.
     
    • Like x 1
  3. WannabeOwner

    WannabeOwner Active Member

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    Location:
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    • Helpful x 1
  4. Electric700

    Electric700 Active Member

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    Location:
    Florida, United States
    #4 Electric700, Mar 11, 2017
    Last edited: Mar 11, 2017
    Good video though I would probably just use a Q-Tip for the wall adapter instead of sandpaper.
     
    • Like x 1
  5. Mercat

    Mercat New Member

    Joined:
    Jul 2, 2018
    Messages:
    1
    Location:
    Akron
    Don’t know why this is or if this can help you but twice now I’ve had issues getting my model s to charge in my garage. Both times I took it to a charging station about a mile from my house and plugged it in for a minute and then drove home and plugged it in again and it worked fine. What concerns me is that this doesn’t tell me if the issue is my charge cord, the car itself or the electrical outlet because it all works fine after being plugged in somewhere else for a bit. Side note...the place I charge has a super old charger that looks beat up. Mine is in fairly good shape.
     
  6. bob_p

    bob_p Active Member

    Joined:
    Apr 5, 2012
    Messages:
    2,119
    Mercat, do you have a recently built S/3/X? If so, you may be affected by the MCU2/Gen 1 charging issue affecting other new Tesla owners.
     

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