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Are Charge Settings Retained?

Discussion in 'Charging Standards and Infrastructure' started by James Anders, May 6, 2016.

  1. James Anders

    James Anders Member

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    Sorry, for a newbie question.

    Looks like I'm stuck with a NEMA 6-20 240VAC connection.

    Getting the Tesla Adapter cable from EVSE Adapters.

    I understand I'll need to throttle down to 16A. Do I need to manually set that each time or will the car remember last setting or set preference by GPS locale?

    Thanks in advance.
    Jim
     
  2. David99

    David99 Active Member

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    Yes the car remembers your position and what you set as a limit for that location and will keep it set like that next time you come.
     
  3. TexasEV

    TexasEV Active Member

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    That's true except when it isn't. The car has been known to lose that setting, either when there's a GPS location error or after firmware updates. So don't trust it. Always check to make sure the car has the amps set correctly.

    Actually an easier and safer solution is to use the UMC 5-20 adapter with it. Then the car does automatically set for 16A (at 240V) because of the 5-20.
     
  4. James Anders

    James Anders Member

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    I noticed that on the Tesla store page the 5-20 adapter is for 120VAC. I assume it's also OK to use in my 6-20 receptacle at 240V?
     
  5. miimura

    miimura Active Member

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    By design, the 5-20 plug won't fit in the 6-20 receptacle. The vertical and horizontal blades are opposite. You need to make a short adapter cable. See this well written guide made by another forum member. The "Motel Air Conditioner" section covers the 6-20.

    http://cosmacelf.net/Home%20Made%20Adapters.pdf
     
  6. James Anders

    James Anders Member

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    Yes indeed. I double checked and you're correct. I've attached photos of Tesla's 5-20 adapter and what I believe to be my 6-20 receptacle in my garage. I was also told that the 5-20 Tesla adapter will fit into my receptacle. Sigh....

    NEMA in garage.jpg NEMA_5-20_large.jpg
     
  7. TexasEV

    TexasEV Active Member

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    EVSEadapters makes a 5-20R to 6-20P adapter for this purpose for Teslas. That's what I was referring to when I said to use the Tesla 5-20 adapter so you don't have to dial down the amps.
     
  8. TexasEV

    TexasEV Active Member

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    You don't use it in the outlet directly. You use the 5-20R to 6-20P adapter from EVSEadapters that they sell for this purpose (at my suggestion).
     
  9. miimura

    miimura Active Member

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    I didn't see it on their site because you have to go to the 14-50R to 6-20P product page and choose the 5-20R option. Hope that helps someone find it. Personally I would DIY the adapter from hardware store parts.
     

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