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 Post subject: Tesla model S UMC with J1772 & JESLA(tm) conversion
PostPosted: Tue May 07, 2013 5:56 am 
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Joined: Tue Apr 16, 2013 9:35 pm
Posts: 21
Here is a link to get the JESLAtm 40 amp portable J1772 charging solution for your Rav4 EV:

viewtopic.php?p=11006#p11006

***************************************************

My friend did this for me mod. It works 100%.

The UMC comes with a 15A & 50A NEMA connector. I use both @ 240V & draw 12A & 40A from respective outlet. The UMC current draw is controlled by the $45 input adaptor so don't cut it out. Voltage of the UMC input is free swing from 110V-240V 50-60Hz.


(I feed the Tesla UMC NEMA 5-15 connector through a NEMA L6-20P to NEMA 5-15 dongle to get my 12A @ 240V)


Image

Image

Yes, I take 40A out of this NEMA 14-50 wall outlet with room to spare. :D

Image

Since our RAV4 has the same 10kW on board charger from tesla, I don't see why we cannot use the same model s UMC spec below. Why settle with 9.6kW from leviton fix station when you can also get portability & upto 10kw from "OEM"?

http://www.teslamotors.com/charging#/highpower


Last edited by BBQ on Tue May 07, 2013 6:25 pm, edited 1 time in total.

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 Post subject: Re: Tesla model S UMC with J1772 connector
PostPosted: Tue May 07, 2013 8:21 am 
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Joined: Sat Mar 30, 2013 9:20 am
Posts: 694
Location: Seal Beach, CA
Awesome! Can you post pic #2 with higher resolution? So it looks like you just chopped the wire near the Model S connector and connected a new J-plug. Which J-plug did you get, and from where? And does the UMC cable have 5 wires or just 4?

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 Post subject: Re: Tesla model S UMC with J1772 connector
PostPosted: Tue May 07, 2013 10:28 am 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 4115
Location: San Diego
BBQ wrote:
My friend did this for me....

Since our RAV4 has the same 10kW on board charger from tesla, I don't see why we cannot use the same model s UMC spec below. Why settle with 9.6kW from leviton fix station when you can also get portability & upto 10kw from "OEM"?



Nice to see others doing this. A couple notes, though. Don't cut the power supply end to put on an L6-20/30/50. If you look, there's an extra pin in there that tells the EVSE what amperage to pull from the wall. For 40 amps in the NEMA 14-50 Tesla plug, it measures 9k ohms. Splicing in something else might leave your EVSE dead.

Also, the EVSE has nothing to do with 9.6kW or 10kW, assuming it is rated for 40 or more amps. The difference is the voltage:

9.6kW = 40 amps * 240 volts
10kW = 40 amps * 250 volts
10kW = 36 amps * 277 volts (max volts for charger, amps are reduced even with 40 amp EVSE)

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Tony Williams
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1780-104 La Costa Meadows Drive
San Marcos, California 92078 USA
tony@QCcharge.com
www.QCcharge.com
Twitter: QCPower
1-844-EV-PARTS
1-844-387-2787
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 Post subject: Re: Tesla model S UMC with J1772 connector
PostPosted: Tue May 07, 2013 5:31 pm 
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Joined: Sat Feb 23, 2013 2:43 am
Posts: 114
Location: Tustin
Very nice!!

Could you share what and where did you get that J1772 connector nozzle?

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 Post subject: Re: Tesla model S UMC with J1772 connector
PostPosted: Tue May 07, 2013 6:35 pm 
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Joined: Tue Apr 16, 2013 9:35 pm
Posts: 21
fooljoe wrote:
Awesome! Can you post pic #2 with higher resolution? So it looks like you just chopped the wire near the Model S connector and connected a new J-plug. Which J-plug did you get, and from where? And does the UMC cable have 5 wires or just 4?


Uploaded HD Pic#2.

We use the leviton 30A jack from leviton web page and just chop the cable off. We can't find it anywhere else.

It seems like a 5 wires on UMC cable.


Last edited by BBQ on Tue May 07, 2013 6:38 pm, edited 1 time in total.

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 Post subject: Re: Tesla model S UMC with J1772 connector
PostPosted: Tue May 07, 2013 6:36 pm 
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Joined: Tue Apr 16, 2013 9:35 pm
Posts: 21
TonyWilliams wrote:
BBQ wrote:
My friend did this for me....

Since our RAV4 has the same 10kW on board charger from tesla, I don't see why we cannot use the same model s UMC spec below. Why settle with 9.6kW from leviton fix station when you can also get portability & upto 10kw from "OEM"?



Nice to see others doing this. A couple notes, though. Don't cut the power supply end to put on an L6-20/30/50. If you look, there's an extra pin in there that tells the EVSE what amperage to pull from the wall. For 40 amps in the NEMA 14-50 Tesla plug, it measures 9k ohms. Splicing in something else might leave your EVSE dead.

Also, the EVSE has nothing to do with 9.6kW or 10kW, assuming it is rated for 40 or more amps. The difference is the voltage:

9.6kW = 40 amps * 240 volts
10kW = 40 amps * 250 volts
10kW = 36 amps * 277 volts (max volts for charger, amps are reduced even with 40 amp EVSE)


Thank you for the correction! :oops:


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 Post subject: Re: Tesla model S UMC with J1772 connector
PostPosted: Tue May 07, 2013 8:15 pm 
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Joined: Sat Mar 30, 2013 9:20 am
Posts: 694
Location: Seal Beach, CA
BBQ wrote:
We use the leviton 30A jack from leviton web page and just chop the cable off. We can't find it anywhere else.

It seems like a 5 wires on UMC cable.
Cool, but aren't you worried about passing 40A through a 30A-rated Jplug? Seems a recipe for disaster...

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 Post subject: Re: Tesla model S UMC with J1772 connector
PostPosted: Tue May 07, 2013 8:59 pm 
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Joined: Fri Mar 29, 2013 3:55 pm
Posts: 84
What's the total cost on this project? I'd love to see a step-by-step build guide on a printable doc (PDF) someday =)

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 Post subject: Re: Tesla model S UMC with J1772 connector
PostPosted: Tue May 07, 2013 9:32 pm 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 4115
Location: San Diego
There are sources for official 40-75 amp J1772 handles. I'm not sure they are better than a quality ITT or Yazaki 30 amp one... the pins connecting to your car are obviously the same.

Try www.TucsonEV.com

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Tony Williams
QC Charge
1780-104 La Costa Meadows Drive
San Marcos, California 92078 USA
tony@QCcharge.com
www.QCcharge.com
Twitter: QCPower
1-844-EV-PARTS
1-844-387-2787
1-760-798-0342 Office
Hours M-F, 9-5 Pacific Time


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 Post subject: Re: Tesla model S UMC with J1772 connector
PostPosted: Tue May 07, 2013 9:40 pm 
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Joined: Sat Mar 30, 2013 9:20 am
Posts: 694
Location: Seal Beach, CA
TonyWilliams wrote:
There are sources for official 40-75 amp J1772 handles. I'm not sure they are better than a quality ITT or Yazaki 30 amp one... the pins connecting to your car are obviously the same.

Try http://www.TucsonEV.com
Yeah, that's where I got my 70 amp cordset for my CS-60. What else besides the pins would differ in a 70 amp vs 30 amp Jplug? There must be some reason for the different rating.

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