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My Open EVSE Build Thread

Discussion in 'Gen 1 Prius Plug-in 2012-2015' started by trentofdestiny, Nov 1, 2012.

  1. trentofdestiny

    trentofdestiny Master Finagler

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    I would like to learn... On the other hand I'll have a programmer I'll never need again unless I want to change the code for adding an LCD etc. I don't care about the display as long as it charges though lol.

    I had to substitute "equivalent" parts for a couple things on the board, so I'd feel better having the unit tested (and not building/buying a tester to use once) :p
     
  2. bisco

    bisco cookie crumbler

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    just got my open evse from mitch672, had it installed in an hour. plugged it in andcharged 9 miles in 52 minutes. it's beautiful and he did a great job with it. i especially like the display countup timer, i will be able to see at a glance how much longer to finish charging. also, the j1772 fit very smoothly in the pip.
     
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  3. mitch672

    mitch672 Technology Geek

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    glad you like it bisco. I also received trentofdestinys OpenEVSE V4.0 board, programmed it and tested it for him as well, will be shipped back on Monday.
     
  4. trentofdestiny

    trentofdestiny Master Finagler

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    Got my Leviton 15A charge cable/plug today. Unfortunately, I had ordered a Leviton strain relief to fit the 30A cable, so that'll get exchanged to Amazon.

    IMG_0093.jpg IMG_0094.jpg IMG_0095.jpg
     
  5. bisco

    bisco cookie crumbler

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    fyi, i just got mine from mitch672 and the leviton charge cable fits into the prius socket just fine. charged up in 90 minutes yesterday and used the toyota cable to charge at work. now i'm back to full commute ev only. you're going to love it trent!
     
  6. trentofdestiny

    trentofdestiny Master Finagler

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    Nice. Which size cable did you get? 15 or 30A?
     
  7. mitch672

    mitch672 Technology Geek

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    I built his OpenEVSE 30A capable (10/3 wiring throughout), though it has an L6-20P plug on it now (240V 20A max).
    He can change out the plug for an L6-30P (240V 30A), if he gets a "real EV". The J-1772 cable used is the 30A version... He only has a 12/2 wire on a 20A breaker now anyway, that would have to be changed to 10/3 on a 30A breaker to support up to 24A (%80 rule)

    BTW, that 15A cable you bought is only rated at 120V, it will work at 240V, but it would not pass UL listing for a commercial product, the insulation is only rated at 300V, the 240V UL approved J-1772 cable assemblies are rated for 600V
     
  8. trentofdestiny

    trentofdestiny Master Finagler

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    I realize that about the voltage rating. The water- and oil-proof power cord I had laying around is also only rated for 300V "junior" cord set.
     
  9. mitch672

    mitch672 Technology Geek

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    Trent, "Stayonline" has a line of Hubbell plastic gland nuts, for all different cable diameters, this is where I bought the ones I use, they are $7 each, but they only seem to ship via FedEx, which makes them a little pricey.

    See link:
    AC Cord Mounts
     
  10. trentofdestiny

    trentofdestiny Master Finagler

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    I'll check that out. I used a weatherproof metal fitting from Home Depot for the inlet cord and an $18 Leviton braided strain relief for the J1772 cable. Amazon will be exchanging it for me. Live and learn I guess :p
     
  11. bisco

    bisco cookie crumbler

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    the 30a cable is not unwieldly in a fixed garage set up.
     
  12. trentofdestiny

    trentofdestiny Master Finagler

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    Got the 15A cable's strain relief in the mail today from Amazon, and the board itself back from Mitch as well. Looks like I'll be doing some wiring tonight :cool: don't know if it will be finished though...
     
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  13. bisco

    bisco cookie crumbler

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    great news, hang in there!
     
  14. trentofdestiny

    trentofdestiny Master Finagler

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    Well I'm done! (pre-testing, of course) Here are the pics. I'm sure Mitch will shudder a little bit at the construction, but it seems sturdy enough for a fixed application.
    IMG_0110.jpg
    IMG_0111.jpg
     
  15. bisco

    bisco cookie crumbler

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    it looks great trent, well done!
     
  16. trentofdestiny

    trentofdestiny Master Finagler

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    Thank you! Oh by the way, it also works ;)
     
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  17. bisco

    bisco cookie crumbler

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    that's the best part, 1 1/2 hour charge time baby!:D
     
  18. trentofdestiny

    trentofdestiny Master Finagler

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    Hehe yeah. Funny thing about that though...the Prius said 0.9kWh and 2.9 hours on 120V but 1.8kWh and 1.9 hours on 240V.
     
  19. bisco

    bisco cookie crumbler

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    that is odd, shouldn't take that long. yesterday i had to leave for work, i thought the charge woyld be done, but when i went out to the garage, it was still charging. i looked at the count up timer and it was at 1 hour 19 minutes. oh well. i figured it must be close to done. i was just about to put my hand on the evse handle when it shut off. looked back at the timer and it was 4 seconds short of 1 1/2 hours.
     
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  20. trentofdestiny

    trentofdestiny Master Finagler

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    I guess you're right. It's been plugged in for maybe 5 minutes and now it says 1.6 hr...oops just went up to 1.7, probably because I had to turn everything on.