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That's the behavior when the HPWC cable is starting to get worn out. I'm willing to bet it does the same thing sometimes when charging a Model S. You might not notice because the MS recovers and re-starts much faster than the Roadster.
I received my MS -> Roadster adapter Monday. First I have to say that Henry's products look and feel like they were produced by NASA. They are the most beautifully built products you can buy anywhere.
I have not been to a HPWC yet, but tested mine by plugging my Model S UMC (from a Nema 14-50) into the adapter and charging my roadster. It worked perfectly at any amperage up to 40.
Thank you Henry for your amazing work, which truly is as good or better than Tesla would have offered.
michael
I have not been to a HPWC yet, but tested mine by plugging my Model S UMC (from a Nema 14-50) into the adapter and charging my roadster. It worked perfectly at any amperage up to 40.
Thank you Henry for your amazing work, which truly is as good or better than Tesla would have offered.
michael
samcarney
Sam C
At Henry's request I went to the Torrance SC and charged without a problem. I have been testing different versions of Henry's adapters for the past 6 months or more, here in SoCal and in the Chicago area. I have both a Roadster 2.0 and a 1.5. I have not had a problem charging the 1.5 at several different Tesla SC's in the LA area. The 2.0 Roadster will occasionally fault upon reaching a full charge, or if initiating a charge when the ideal range is greater than 100 miles.
In summary my 1.5 has had 100% success, while the 2.0 is 98% successful.
Tesla 940, one of the ways of resetting a charging session is to close the charge port door for a few seconds and re-opening.
wiztecy
Active Member
samcarney
Sam C
The Roadster 2.0 is in Michigan. I brought the CAN with me to LA and used it on the 1.5 without the problems I experienced with the 2.0. This can is Henry's previous version, not his latest. I have not tried the latest version on the 2.0.
I will not be able to test the latest version CAN with the 2.0 until spring, unless there is a heatwave in the Midwest that draws me back. LOL
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To clarify my last post. I have 2 CAN's the latest that we are calling CAN V2.1 and the previous CAN version 2.0. I have used both CAN's on the Roadster 1.5 without a problem, at varios HPWC's and UMC's at all amperages. Too many confusing numbers. HA
dhrivnak
Active Member
Henry, what do you think of Roadster owners getting the small Model S J-1772 adapter mated to your new Model S adapter? With space being such a premium in the Roadster I was wondering if that would be better than needing to carry both adapters in the car? Thoughts anyone?
We owe a lot of thanks to a handful of people who did a lot of testing for me at no charge. SamCarney gave a lot of his time sending me detailed reports from the field. He has a lot of experience with product development and testing and was very generous with his time. Another tester (don't have permission to give his name but doubt he'd mind) very generously sent me his UMC for testing because I was having a hard time finding any that failed where I live. He's gone months without his UMC just to help me out. Bonnie was also instrumental getting me connected with another source of help, and sent some very useful vids of her testing. Thanks to Richkae for getting this thread started and prodding me along as well as some testing that he did. Smorgasbord drove around to a lot of HPWCs. I'm sure I'm forgetting some others... And thanks to all of you for your enthusiasm and forgiving me for taking much longer than expected.
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samcarney
Sam C
bonnie
I play a nice person on twitter.
From this end I can say it's been not only a privilege to have been involved in a very small way, but totally fun to pull up and see the look on Tesla employees' faces when I start charging my Roadster off an HPWC. "Wait! What? Whaaaaat IS that??" 
Priceless experience for me, Henry. Can't thank you enough!
Priceless experience for me, Henry. Can't thank you enough!
samcarney
Sam C
but totally fun to pull up and see the look on Tesla employees' faces when I start charging my Roadster off an HPWC. "Wait! What? Whaaaaat IS that??
Ditto
Ditto
jackbowers
Jack Bowers
Great work, Henry! Please add me to your list; I'm also in for funding development. Just curious on the incompatible HPWCs. If *someone* were to open them up and switch the dip switches to the 70A position, would that fix the problem?
dhrivnak
Active Member
I think the new firmware for the Roadster also fixes this. So one should not need to fool with the dip switches. I hope to find out as soon as Henry lets me buy one.
bonnie
I play a nice person on twitter.
Resetting the dip switches would not make a difference. It's not an issue with the amperage of the pilot signal, to the best of my understanding.
Curt
Roadster Signature #55
My adaptor arrived today.
Much like the J1772 Can, this is beautifully made - many thanks, Henry!
I immediately went to the Rockville, MD Service Center to test, and got a lot of surprised looks from the staff. It worked flawlessly.
Much like the J1772 Can, this is beautifully made - many thanks, Henry!
I immediately went to the Rockville, MD Service Center to test, and got a lot of surprised looks from the staff. It worked flawlessly.
From this end I can say it's been not only a privilege to have been involved in a very small way, but totally fun to pull up and see the look on Tesla employees' faces when I start charging my Roadster off an HPWC. "Wait! What? Whaaaaat IS that??"
LOL. I'd +rep you for that, but you have too many bars already.
bonnie
I play a nice person on twitter.
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