My wife had a brilliant idea to try and charge her Tesla 3 with the V2L feature. I bought an OEM V2L adapter from S Korea on eBay and an outlet adapter on Amazon per advice on another thread. We used the Tesla supplied cord that we normally use to charge the 3. But as soon as we fired it all up, a red light appeared on the 3 next to the charging port, and the interior screen said there was inadequate outlet grounding. The 5's screen said it was transferring V2L. Any idea which of the many components was failing?
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US ICCU Recall (aka 12V battery failure issue) and Tesla Supercharger access and adapters. Please do not create duplicate threads on these topics. Links: ICCU Thread | Supercharger Thread | Adapter Thread
I-GUY
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Can anyone confirm that an EVSE like this will work even with the US spec V2L? Is it possible that none of the V2Ls are grounded in such a way as to allow this kind of use?
Hyundai claims you can charge another EV. Somehow Tesla is skeptical.
I confirmed on my Canadian Ioniq 5 ultimate, that the Canadian V2L is properly grounded. i.e. the Ground slot and Neutral slot are bonded. Think of the Ioniq 5/V2L as a portable "generator". Most portable generators have the neutral and ground bonded. I also plugged in my EVSE into the the V2L and it gave no errors
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In your photo it def looks green, at least on my iPad.
Do you know if the adapter even has metal inserts for the ground ?
On the adapter, there are 2 ground possibilities:
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On the adapter, there are 2 ground possibilities:
- the 'hole' (blue) > but no pin on the V2L
- the 'cut-outs' at top and bottom > they should connect with the metal 'things' on the V2L (red)
It certainly looks green, had to look back, but I think that's just a representation of their car on the in-car infotainment screen
2022 Ioniq 5 Limited AWD, Lucid Blue with Gray/White Interior
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Did you "ACTUALLY" measure the continuity between Neutral and Ground terminals (N and PE as shown below) on your Canadian V2L adapter? As far as I know, 120VAC in U.S. and Canada are same. Neutral is NOT supposed to be tied to Ground. Ground is earth ground for residential and commercial buildings, and chassis ground for vehicles.
2022 Ioniq 5 Limited AWD, Lucid Blue with Gray/White Interior
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I also have a Korean V2L adapter that came with same Korea/US adapter. The hole in blue in your diagram has connection to the two outer contacts that mate to two copper spring contact on the V2L adapter. However, when I tested the continuity between PE terminal of V2L adapter and copper spring contacts, they are open. I think this causes the Open Ground issue. I plugged in the cordless drill battery charger to my V2L adapter and it worked fine, but when I plugged in the AC tester similar to the one in above posts, I got Open Ground.Do you know if the adapter even has metal inserts for the ground ?
On the adapter, there are 2 ground possibilities:
Sometimes, these cut-outs are only to make the plug fit, and lacking the metal inserts for the ground.
- the 'hole' (blue) > but no pin on the V2L
- the 'cut-outs' at top and bottom > they should connect with the metal 'things' on the V2L (red)
View attachment 43461
It certainly looks green, had to look back, but I think that's just a representation of their car on the in-car infotainment screen
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What do you think the significance is of this for the lay person in terms of ways they should use or not use the Korean V2L with north american spec I5?
I would also say that, at least the ground on both sides of the V2L should be connected (or with the copper springs, or with one of the holes at the center) ... if not then something is wrong ?
Stupid question maybe, but how can the ground going into the car, be 'grounded' ? (Unless you ground the chassis with a clamp)
Isn't the ground being 'supplied' by the charger, so the car is 'grounded' via the charger ?
Maybe the Tesla is checking the actual ground is closed (similar to the AC tester) ?
With the AC tester, the issues could also be that there is no ground connect in the V2L center holes, and only the copper springs are connected (which in your case they also don't seem to be) ?
I measured continuity between neutral and ground on the Nema 5-15 receptacle of the V2L. I don't think you are correct about neutral not being tied to ground on the car if the power is being generated by the car. Think of the V2L as a portable generator. For a portable generator, the neutral and ground are bonded.
update: Also measured between PE and N of the V2L and it is also bonded.
Proper Grounding and Bonding of Generators
When renting generators, it's important to know OSHA requirements for jobsites. There are two specifications: dealing with grounding the generator and bonding the neutral to the frame.
www.forconstructionpros.com
Generators used on construction sites supplying cord-and-plug connected equipment (tools, lights, etc.) are considered a “separately derived system” in the National Electrical Code, and thus, the neutral must be bonded to the frame of the generator.
Hey guys. I’ve been out of town a few days. I do see the “green” confusion now! You’re referring to the touch screen in the Tesla. My wife updated the car’s avatar to a pretty turquoise green, but hers is actually gray.
For the charging issue, I bought two more adapters and all have the same issue according to the Tesla: inadequate grounding. All of them have the metal at top and bottom and do make contact with the pins in the V2L socket. My thought now is to return everything and buy the US spec V2L from Hyundai. I had thought I saw a $550 price tag, but now they quote me $230. Then no adapters. Tesla still could balk at it. At least I’ll have a V2L for any future use.
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For the charging issue, I bought two more adapters and all have the same issue according to the Tesla: inadequate grounding. All of them have the metal at top and bottom and do make contact with the pins in the V2L socket. My thought now is to return everything and buy the US spec V2L from Hyundai. I had thought I saw a $550 price tag, but now they quote me $230. Then no adapters. Tesla still could balk at it. At least I’ll have a V2L for any future use.
Pat_in_LA already confirmed that the issue is the Korean V2L. The ground (PE) and upper contacts are not bonded, and also the neutral and ground are not bonded. I would agree with you, sell everything and get yourself a US V2L. I confirmed on mine (Canadian V2L) that the neutral and ground are bonded.
Ioniq 5 V2L to Tesla 3 failure
My wife had a brilliant idea to try and charge her Tesla 3 with the V2L feature. I bought an OEM V2L adapter from S Korea on eBay and an outlet adapter on Amazon per advice on another thread. We used the Tesla supplied cord that we normally use to charge the 3. But as soon as we fired it all...
www.ioniqforum.com
Who's quoting $230 for US V2L adapter? I'll order one immediately.
The parts guy at my dealer: Pedder Hyundai, Poway, CA. (San Diego suburb) I'm going there next!
You have to check it when connected to the V2L adapter. Since the adapter you have is a Schuko, it's not directional, so it can be plugged in both ways in a schuko outlet. And if the adapter had a short between neutral and ground, pluging it in the other way gives it a short to ground.
Here where we have a ground fault breaker on all new electric fuses, it would trip even when connected neutral to neutral also.
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I've charged our Model 3 from ur Ioniq 5 with the provided Hyundai EVSE with no problem. The issue is with the Tesla Universal Mobile Connector which does not charge for me either. If you are in the US then you should be able to use the J1772 to Tesla adaptor and the Hyundai EVSE together and I think it will work fine.
Wow, I had never considered the Tesla travel cord the culprit! I will test this as soon as the new V2L arrives from Hyundai. I did purchase a Lectron J1772 to Tesla adapter. If this works I owe you a big hug, LOL!!
So this is the part number- GIH68-AK0A0
I just paid $260 at my local dealership. Probably could’ve found it cheaper online had I known this was the actual part number. Much cheaper than what I’ve seen online though. I’ll have it in two days.
TL;DR at the end
The point of a ground wire is to carry fault current when you drop your metal toaster, stuff inside breaks, and the hot lead comes in contact with the metal shell. Contrived example, but that's the crux of it. It should be safe to touch, and robust enough to trip the breaker if a hot wire shorts to it.
TL;DR: you want one of these: a ground-neutral bonding plug. It'll solve your problem, and in this application it's perfectly safe:
The issue at hand is that ground needs to be connected to neutral somewhere, or ground is open, and that's the fault the Tesla cord detects.
In USA NEMA 5-15 plugs, the current carrying conductors are polarized: one carries the 120VAC hot phase and one carries neutral, defined by tying it to the system ground back at the main service, for safety reasons stated above. The only thing the Tesla UMC cares about is that current can flow between neutral and ground, implying that the ground return path is valid in case a fault happens.
I'm surmising from the info here that Korean electrical installations don't have a concept of plug polarity, and thus the Korean V2L adapter doesn't bond either pin to the ground pin like the North American adapters do, hence needing to make one of those cheater plugs like in the video above.
This is the case, although it looks like y'all sorted that out.
That seems like a bad idea, even ethics aside, based on efficiency and how GD long it'll take. If you want to charge the tesla 10-80, you're looking at sub-50% efficiency and like 50+ hours of sitting around waiting for it to happen. You'd be limited by 1) 1300W maximum charge rate into the tesla 2) ~300W burned in the Tesla just keeping the computers on 3) ALSO 2-300W burned in the Ioniq 5, same issue. So you'd probably have to DCFC the I5 3 times to fill the tesla up once, and you'll spend 50 or 60 hours of plug time doing it.
I can. The US-spec V2L has a properly bonded GND+Neutral, as you can see in the last picture here (yellow-green earth wire bonds over to blue neutral) Inside the Hyundai/Kia V2L Connector Admittedly, I didn't get specific about that or provide a full schematic.
It's been pointed out, but this is wrong. Neutral and Earth should be bonded at exactly one point: the source of power into the home. That's at the primary service in a household installation, and nowhere else, to make sure there's ONLY fault current on the ground conductor. In a generator scenario, which this is, that needs to happen at the inverter, which is why the USA V2L adapter is wired this way.
Not a stupid question, and confuses literally everyone who's not an electrical engineer or electrician. "Ground" does not necessarily mean literal earth, although that's usually the case, and there's nothing magical about the earth, other than it's a half decent conductor and by convention every AC distribution system uses it in some capacity or another.
The point of a ground wire is to carry fault current when you drop your metal toaster, stuff inside breaks, and the hot lead comes in contact with the metal shell. Contrived example, but that's the crux of it. It should be safe to touch, and robust enough to trip the breaker if a hot wire shorts to it.
The fault isn't the tesla cord - the tesla cord is just VERY robustly engineered with excellent safety considerations, and won't work in detectably-unsafe conditions.
TL;DR: you want one of these: a ground-neutral bonding plug. It'll solve your problem, and in this application it's perfectly safe:
The issue at hand is that ground needs to be connected to neutral somewhere, or ground is open, and that's the fault the Tesla cord detects.
In USA NEMA 5-15 plugs, the current carrying conductors are polarized: one carries the 120VAC hot phase and one carries neutral, defined by tying it to the system ground back at the main service, for safety reasons stated above. The only thing the Tesla UMC cares about is that current can flow between neutral and ground, implying that the ground return path is valid in case a fault happens.
I'm surmising from the info here that Korean electrical installations don't have a concept of plug polarity, and thus the Korean V2L adapter doesn't bond either pin to the ground pin like the North American adapters do, hence needing to make one of those cheater plugs like in the video above.
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