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UMC Gen 1 or 2? I seem to have parts of both...

Discussion in 'Model S: Battery & Charging' started by Litigate88, Apr 18, 2018.

  1. Litigate88

    Litigate88 Member

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    So I picked up my CPO yesterday, and the UMC is a little strange. From looking at the pictures online, I have all the Gen 1 parts (adapter is only the small part that plugs in at the one end, not the dangling cord, and the UMC box lights up green on the little vertical line as charging), but the part that you plug in to the Tesla directly is the Gen 2 plug (no button, just the circle around the dot). In the pics attached, I circled in red what my UMC is comprised of from each generation...

    So if I want to order a 5-20 adapter, I should order the UMC Gen 1 adapter? I just want to make sure before doing so. Sorry if this is an obvious question, but I'm only on day one of being a Tesla owner.

    gen 1 circle.jpg gen 2 circle.jpg
     
  2. TexasEV

    TexasEV Well-Known Member

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    The handle of Gen 1 UMC has been that way (circle around the dot) for several years. Maybe it should be called Gen 1.1?
     
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  3. Litigate88

    Litigate88 Member

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    Ah okay. Definitely part of my newness to this club :) Seems like I should go ahead and order the Gen 1 adapter then.
     
  4. Tam

    Tam Well-Known Member

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    You need to buy an adapter that fits.

    You can identify whether yours Gen 1 or 2 by looking at what looks like a brick.

    If that brick has a socket to receive a pig tail, then that's Gen 2.

    [​IMG]

    If that brick has no socket directly on its side end but it has a permanently short cable that has connecting connecting socket, that's Gen 1

    [​IMG]


    So please buy your 5-20 adapter according to what your brick looks like so it can either fit directly to the brick (Gen2) or fit to a short cable that has a socket (Gen1.)

    It would be helpful if you can post a picture of what you have.
     
    • Informative x 1
  5. TexasEV

    TexasEV Well-Known Member

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    The Gen 1 picture you posted has the original style handle, which is what the OP was confused about. Newer Gen 1 UMCs have the round dot to push on the handle. A similar change was made on supercharger handles a while back.
     
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  6. Tam

    Tam Well-Known Member

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    I see the confusion. Thanks.

    @nybw51mr42

    When buying an adapter, please ignore the handle that fits into your car. Whether it is Gen 1 or 2, old or new, those handles always fit your car so don't rely on that.

    Older handle has a clickable physical button:

    upload_2018-4-18_10-4-7.png


    Newer handle has a painted circle so you know where to click:



    upload_2018-4-18_10-3-12.png
     
    • Informative x 1
  7. Rocky_H

    Rocky_H Well-Known Member

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    I think the change to the newer "dot" style on the charging handle was to be more sealed and waterproof perhaps.
     
  8. Litigate88

    Litigate88 Member

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    Thanks everyone. I definitely have the Gen 1 socket style where the adapter is just the piece (no cable) that you attach to the end of the cord.
     
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