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220v charging cable questions....

Discussion in 'Roadster' started by chris22104, Mar 20, 2012.

  1. chris22104

    chris22104 Member

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    So let me get this straight:
    The mc 240 charging cable charges at 30 amps, but only works with the 1.5 cars.
    The umc 240 charging cable charges at a higher 40 amp rate, and works with all versions (1.5, 2.0, and 2.5.)
    Am I correct on these details?
     
  2. Alfred

    Alfred Member

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    My 2.0 was delivered with an MC 240 (EU version) for up to 30A and charges with it.
     
  3. Doug_G

    Doug_G Lead Moderator

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    There was a firmware upgrade for the 2.0/2.5 that made the MC240 not work, but I heard they subsequently fixed that. You might want to confirm with Tesla.
     
  4. ggr

    ggr Roadster R80 537, SigS P85 29

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    Yes, the firmware upgrade that made the Blink (I think) charger work with the Roadster simultaneously broke the MC240. But Tesla loaned me a UMC while they had the MC240 fixed. Presumably they would do that for anyone with an MC240 that didn't work any more.
     
  5. chris22104

    chris22104 Member

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    So for a 1.5, does either style charge at 40 amp, or are both styles only 30 amp?
     
  6. Doug_G

    Doug_G Lead Moderator

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    The 1.5 is capable of 70A, just like the 2.0/2.5, so I'm sure if you give it 40 it'll take it.
     
  7. dhrivnak

    dhrivnak Active Member

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    The older style UNC is limited to 30 amps. The 1.5 will also charge at 70 amps. So I really do not know why they limited the first UNC to 30 amps but it is. I guess they were being extra conservative.
     
  8. chris22104

    chris22104 Member

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    I guess what I am trying to ask is, as far as the two 220v mobile connectors are concerned (the older mc240 and the newer umc240,) are both 30 amp output, or does the newer umc240 put out 40 amps? I'm pondering one of these instead of a permanent wall-mounted 70 amp charging station. I could take it with me and charge at rv campgrounds and the like if necessary. I'd prefer 40 amps instead of 30 amps!
     
  9. GSP

    GSP Member

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    #9 GSP, Mar 20, 2012
    Last edited: Mar 20, 2012
  10. dsm363

    dsm363 Roadster + Sig Model S

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    The newer UMC does go to 40A. That's what I use at home. It's plenty fast enough for charging overnight and for almost all situations. If you drive on a long trip and come back almost empty and want to head back out again with little delay, the HPC would come in handy. Otherwise the UMC is fine.
     
  11. vfx

    vfx Well-Known Member

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    A later firmware update lets the car work on Blink (J1772 plugs) and requires no UMC fixes.

    Thank you Tesla!
     
  12. jory

    jory Member

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    #12 jory, Mar 20, 2012
    Last edited: Mar 24, 2012
    tesla upgraded my MC240 to work with all roadster versions.
     
  13. dsm363

    dsm363 Roadster + Sig Model S

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    You should PM chris22104
     
  14. chris22104

    chris22104 Member

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    Then that's what I'm after; a newer 40 amp umc. I don't suppose anyone has one they want to sell? If not, I'll have to take the plunge brand new thru tesla. I see it's only $500 less than the HPC. Maybe someone wants to upgrade to the HPC and sell their umc to cover some of the cost?? If so, lety me know! Thanks again guys, for your help and clarification!
     

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