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Thoughts on the "World's First Tesla extension cord"?
- Thread starter Stavesacre21
- Start date
i'll take it off your hands for $25!
Nah. I'll hang onto it. I've learned that when I get rid of virtually anything, I invariably need it the next day.
640k
Member
TT97
Active Member
just sayin'
Do you only keep items that "spark joy"? If so, I have no clothes left for work.
davewill
Active Member
I suggest that an extension cord shouldn't spark at all...
srs5694
Active Member
Not to mention prescription medicines, tax documents, kitchen utensils, computers, eyeglasses, and other necessities -- at least, speaking for myself. I'm sure some people would experience joy when dealing with at least some of these things. In fact, I bet I'd experience joy when holding my glasses if I were deprived of them for a week -- but not today.
Watts_Up
Well-Known Member
Interesting point. And true observation. It's why when I need to get rid of something,
just sayin'
I put it in a big black bag and close my eyes, so I don't have any remorses.
Note: Kondō Marie (近藤 麻理恵 様) has a beautiful Japanese voice, however the narrator speaks like a Female Federal Prison Guard.
As entertaining as I've found the mounds of speculation and personal threats, I just went ahead and emailed them to ask them what's to keep someone from trying to use it on the SC network and burning their car to the ground. Also asked what AWG is being used.
Will report back whenever I hear back. No need for bloodshed guys.
Will report back whenever I hear back. No need for bloodshed guys.
I think there's two schols of thought to make this "supercharger proof"
1) Limit the current through fuses. Something like a 50 or 60 amp fuse would blow in just a second or two after starting a charge. Might fit a fuse holder and a pair of type G fuses in one of the handles.
2) Fail a DC isolation test. Phase to ground would trip GFI in an AC EVSE so you can't do that, but at least CCS and CHAdeMO (and I assume supercharger) there is an isolation test done between the positive and negative before the contactors inside the vehicle close, to verify integrety of the cable, connector, and some vehicle side stuff. So I would put something like 100k Ohm resistor between the two power pins. It'll dissipate a very small amount of power when in use for AC power, but will prevent a supercharge session from even starting, because it would fail this test. Boom. Done.
Tony if you didn't think of #2 on your own, you owe me!
1) Limit the current through fuses. Something like a 50 or 60 amp fuse would blow in just a second or two after starting a charge. Might fit a fuse holder and a pair of type G fuses in one of the handles.
2) Fail a DC isolation test. Phase to ground would trip GFI in an AC EVSE so you can't do that, but at least CCS and CHAdeMO (and I assume supercharger) there is an isolation test done between the positive and negative before the contactors inside the vehicle close, to verify integrety of the cable, connector, and some vehicle side stuff. So I would put something like 100k Ohm resistor between the two power pins. It'll dissipate a very small amount of power when in use for AC power, but will prevent a supercharge session from even starting, because it would fail this test. Boom. Done.
Tony if you didn't think of #2 on your own, you owe me!
davewill
Active Member
I was thinking you might be able to put filters in that would block the data connection needed to negotiate the Supercharger session while allowing J1772 to work just fine.
CharleyBC
Active Member
So, suppose someone uses this and burns their car to the ground at a Supercharger. You just know the news story is going to miss the subtlety that there was a third-party extension cord involved. It'll be all about a Tesla burning.
Finally got a response from the company which didnt really answer all my questions. Gonna cut and paste the reply from them:
I have a question about your Tesla extension cable. Clearly, its not to be used on the SC network, but is there a lockout that would prevent someone from doing so, rather it be in software or hardware?
The cable is fused.
*****************
What is the AWG used for this cable?
Besides being available in various lengths, the ELONG™ has three power ratings. The legacy 2008-2011 Roadster requires an adaptor (not supplied). J1772 charge stations require Tesla J1772 adaptor (supplied with every new Tesla car).
32-40 amp - For use with the mobile connector that came with your Tesla vehicle, or public J1772 charge stations that are rated for 40 amps or below, which is most of them. The cable is approximately 0.55 inch (14mm) diameter.
48 amp - for ALL Tesla vehicles, EXCEPT those with upgraded onboard chargers and the legacy Roadster. The cable is approximately 0.58 inch (15mm) diameter. RECOMMENDED FOR MOST TESLA OWNERS.
80 amp - for Tesla vehicles with upgraded onboard chargers. Usually 70, 72, or 80 amps. The cable is approximately 0.95 inch (24mm) diameter, and is the heaviest of the three.
***************
ELONG™ lengths available are as follows:
32-40A - 25 feet / 7.6m and 50 feet / 15.2m
48A - 20 feet / 6.5m and 40ft / 13m
80A - 15 feet / 49m and 30ft / 98m
******************
Custom lengths include a $50 surcharge, plus the cost of the additional cable:
32-40 amp cable only - $5 per each additional foot / 0.3 meter
48 amp cable only - $7.50 per each additional foot / 0.3 meter
80 amp cable only - $10 per each additional foot / 0.3 meter
Thanks,
Tony Williams
Founder/ CEO / Product Architect
QC Charge
1780-104 La Costa Meadows Drive
San Marcos, California 92078 USA
[email protected]
www.QCcharge.com
Twitter: QCPower
1-760-798-0342 Office M-F, 9-5pm
1-844-EV-PARTS
1-844-387-2787
I have a question about your Tesla extension cable. Clearly, its not to be used on the SC network, but is there a lockout that would prevent someone from doing so, rather it be in software or hardware?
The cable is fused.
*****************
What is the AWG used for this cable?
Besides being available in various lengths, the ELONG™ has three power ratings. The legacy 2008-2011 Roadster requires an adaptor (not supplied). J1772 charge stations require Tesla J1772 adaptor (supplied with every new Tesla car).
32-40 amp - For use with the mobile connector that came with your Tesla vehicle, or public J1772 charge stations that are rated for 40 amps or below, which is most of them. The cable is approximately 0.55 inch (14mm) diameter.
48 amp - for ALL Tesla vehicles, EXCEPT those with upgraded onboard chargers and the legacy Roadster. The cable is approximately 0.58 inch (15mm) diameter. RECOMMENDED FOR MOST TESLA OWNERS.
80 amp - for Tesla vehicles with upgraded onboard chargers. Usually 70, 72, or 80 amps. The cable is approximately 0.95 inch (24mm) diameter, and is the heaviest of the three.
***************
ELONG™ lengths available are as follows:
32-40A - 25 feet / 7.6m and 50 feet / 15.2m
48A - 20 feet / 6.5m and 40ft / 13m
80A - 15 feet / 49m and 30ft / 98m
******************
Custom lengths include a $50 surcharge, plus the cost of the additional cable:
32-40 amp cable only - $5 per each additional foot / 0.3 meter
48 amp cable only - $7.50 per each additional foot / 0.3 meter
80 amp cable only - $10 per each additional foot / 0.3 meter
Thanks,
Tony Williams
Founder/ CEO / Product Architect
QC Charge
1780-104 La Costa Meadows Drive
San Marcos, California 92078 USA
[email protected]
www.QCcharge.com
Twitter: QCPower
1-760-798-0342 Office M-F, 9-5pm
1-844-EV-PARTS
1-844-387-2787
@Stavesacre21 Thanks for the info! If it's fused it won't burn down the supercharger. Just turn it into a paperweight.
If does sound like a more flexible option over various extension cords on the plug side of the UMC. Plus the option of using it on a J1772 cable (although the adaptor wouldn't be locked to anything).
If does sound like a more flexible option over various extension cords on the plug side of the UMC. Plus the option of using it on a J1772 cable (although the adaptor wouldn't be locked to anything).
jvmoore1
Member
thanks for the update..
on a separate note, great username. been a Stavesacre fan since HS!
darth_vad3r
Well-Known Sith
LOL, hopefully it’s user replaceable, and not by a paper clip
Hmm, good point about locking.
FlatSix911
Porsche 918 Hybrid
Thanks for posting, but he did not answer the key question on AWG wire size... clearly deflecting with cable size.
So, has this turned out to be vaporware...? Was just looking at their site, it now says "we expect Tesla ELONG to ship by Early 2020." That's a delay from the earlier screenshot indicating "Fall 2019"; and, I would argue, the "early 2020" ship has already sailed....
Anyone ever get to the bottom of the AWG question?
Anyone ever get to the bottom of the AWG question?
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