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Cheap 240v/16A J1772

Discussion in 'Charging Standards and Infrastructure' started by iKhalid, Jul 23, 2014.

  1. iKhalid

    iKhalid Member

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    I live in a Terrace home/condo and every parking spot here has a post with a 110v/12A (NEMA 5-15) receptacle that is connected to each unit's panel. Since I couldn't change much when I got my Tesla, I converted the 5-15 to a 6-20 (240v/20A; very easy conversion). I bought the 5-20 adapter from Tesla to properly limit the continuous current and created an adapter to make it fit in the new 6-20.

    As you can tell, I'm using my UMC for my daily charging and everything is OK so far. However, it's becoming a hassle to connect and disconnect the charger every morning and night. I would like to have something fixed in there that I only have to plug it in when I reach home and unplug it when I leave. Also, it would be nice to make it available on Plugshare for other EV drivers in case of an emergency.

    Buying another UMC is expensive and is prone to be stolen no matter what you do to the post (although I live in a very safe area, but you never know) since it will be outside all the time. So I was thinking of a way to have a J1772 installed, something cheap and does the job since I only need a 16A J1772. I looked at a few ones online but they are still in the ~$400-500 range.

    I also looked at this $100 J1772 with cable, but I'm not sure what to put on the other end:
    SAE J1772 EV charging plug in with 8 meters 16A cable, for American electric car/vehicle-in Electrical Plugs Supplies on Aliexpress.com

    Is it a straight forward hookup to the wall, or does it need a some circuit in between?

    Basically, my final product should look like this:
    http://store.evsolutions.com/turbocord-p28.aspx?__utma=56191615.2130059124.1406128660.1406128660.1406128660.1&__utmb=56191615.4.9.1406128683237&__utmc=56191615&__utmx=-&__utmz=56191615.1406128660.1.1.utmcsr=google|utmccn=(organic)|utmcmd=organic|utmctr=(not%20provided)&__utmv=-&__utmk=183826082

    Any feedback is appreciated!
     
  2. glhs272

    glhs272 Unnamed plug faced villian

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    Not sure how handy you are with electronics, but I built an OPEN EVSE http://code.google.com/p/open-evse/ that is what I use for a similar situation. I charge at work with a Nema 6-20 plug (16 amps). You can buy the kit and put it togeather yourself. This will allow you to make a totally custome EVSE for exactly what you want to use it for. The only thing, after it's all said and done it's not much cheaper than a UMC.
     
  3. iKhalid

    iKhalid Member

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    Thanks!

    Yeah, I looked at that yesterday and I just thought I might be able to find a cheaper solution. I'm from a computer eng. background so the installation shouldn't be an issue.

    The UMC is way more expensive if you ask me: $650 + tax + shipping.
     
  4. linkster

    linkster Member

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    TonyWilliams (one of electrical/charging mavens) stated that you can purchase just the UMC (no bag, no adapters) for $480.
     
  5. drees

    drees Active Member

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    That's just the plug/cable. OpenEVSE would contain all the electronics you need between the plug and wall.

    Clipper Creek makes the least expensive EVSE that I am aware of - the LCS-20 at $395 - designed to be hard-wired on a 240V/20A circuit. You shouldn't have any issue putting a 6-20 plug on it.
     
  6. dhrivnak

    dhrivnak Active Member

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    I do think you want to just buy the cable as it appears to just be a plug and wire. One needs additional pilot signal and power signal for this to work. Unless you want to build the electronics then I would go the Clipper Creek route.
     
  7. PhilBa

    PhilBa Active Member

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    Does OpenEVSE have UL certification yet? I'd be wary of anything that didn't.
     
  8. iKhalid

    iKhalid Member

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    The only thing that annoys me about LCS-20 Clipper Creek is the current limit (15A instead of 16A). This might sound silly but I don't have a lot of currents, so 1A is really valuable :)
     
  9. TonyWilliams

    TonyWilliams Active Member

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    Really? Do you use the non-UL listed Tesla UMC or Tesla Supercharger? To my knowledge, no Tesla product is UL listed.
     
  10. GSP

    GSP Member

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    +1 for the Clipper Creek LCS-20.

    It is hard to beat $395 if you build your own Open EVSE, and the LCS-20 is UL listed (I think). Open EVSE would be a fun project, and is great for people that want to add their own custom features, but I think the OP just wants a reliable, durable, inexpensive, basic EVSE.

    I also suggest buying a charge port opener fob from lolachampcar to go with it.

    GSP
     
  11. andrewket

    andrewket 2014 S P85DL, 2016 X P90DL (soon 100)

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    I tried to do this and Tesla would only sell me the entire kit. I wanted a spare UMC for the cross-country road trip we just did for TMC connect.
     
  12. iKhalid

    iKhalid Member

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  13. swegman

    swegman Member

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    Andrew, the Rockville SC sold me just the UMC without bag and adapters. There was no problem.
     
  14. tga

    tga Active Member

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    How, exactly, do you get UL certification for a home built kit?
     
  15. Park2670

    Park2670 Member

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    Ive got the LCS-20 for my Volt and it has been great. I have been back and forth if I continue to use it on the Tesla when I pick one up. I feel that the slower charge would be better for the battery anyway.
     
  16. andrewket

    andrewket 2014 S P85DL, 2016 X P90DL (soon 100)

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    I'm using an LCS for our Volt as well. Haven't had any problems.
     
  17. andrewket

    andrewket 2014 S P85DL, 2016 X P90DL (soon 100)

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    Interesting. Not sure why they wouldn't for me. Oh well. Having extra adapters isn't the end of the world. Of course I ended up not needing the spare UMC or the spare tire on the trip.
     
  18. pgiralt

    pgiralt Active Member

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    Then you should be weary of the UMC because it is not UL certified either. :) The inspector gave me a hard time when he came to inspect my 14-50 outlet because he looked at the UMC and was trying to find a certification on it. It shouldn't have mattered because he's there to inspect the outlet, not what I'm plugging into it, but because I happened to have it there, he wouldn't pass my inspection. I had to get a hold of Tesla and it turns out that technically the UMC is considered "part of the car" so it doesn't require UL certification but rather is subject to some automobile standards that it has to adhere to. Apparently that answer was good enough for the inspector and they passed it in the end.
     
  19. iKhalid

    iKhalid Member

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    I hate dealing with such people! I would put the UMC in the trunk and tell him: Magic! it disappeared! I need the 14-50 for a new dryer that i haven't bought yet!
     
  20. pgiralt

    pgiralt Active Member

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    That's pretty much what I told him. I said - "I'm going to buy a welder and plug it into this outlet, now can you pass the inspection?" He didn't go for it.
     

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