or both "Tesla Universal Wall Connector"

I know a few people who got these and are happy (and electricians who recommend them) - supports NACs and J1772 with integrated adaptor.

 

I chose the Tesla Universal - despite my attitude toward the Tesla CEO. It has some of the highest ratings and will easily accommodate any EV. It's great. My electrician says it's the best.

 

You gain nothing by going NACS now on everything, other than slight simplicity in the future. There is no difference in charging speed/efficiency with or without adapters.

The one plus by adopting NACS now is the adapter for your J1772 port will be useful in travels, hotels more often seem to have Tesla L2 chargers than J1772.

I already had a J1772 plug L2 charger, but got a Tesla Mobile Connector for travels since some of my destinations (family members) have 50A outlets, but no chargers. I have used my Tesla to J1772 adapter many times, including with my mobile connector, so it has been an invaluable investment.

I suspect many EVSE makers will soon be offering NACS cables to swap on existing J1772 equipped EVSEs. Grizzl-e already offers the choice on a few models, and likely will offer a replacement cable at some time in the future. But honestly, the adapters aren't too bulky for AC charging.

 

Thanks, that’s helpful. My neighbor has a Tesla wall charger and I already bought the Lectron adapter so I can use his charger until mine is installed. So if there’s no difference in charging speed then I will probably go with an NCAS charger myself and use that adapter all the time.

 

Level 2 adapters should not affect charging speed or efficiency.

I know that ChargePoint is or will offer NACS cables to retrofit older Home Flex chargers that have J1772. It would not surprise me if other manufacturers of smart chargers are or will do the same. So if you want a smart charger you can probably just pick the one that works best for you, checking the manufacturer’s information to verify cable swaps can be done later.

 

I bought the ChargePoint Flex because you can swap in a NEMA plug or do a direct wire in from your panel. As well, you can swap out your J1772 for the NACS as FAN of EV points out. See here: https://store.chargepoint.com/product/nacs-cable-kit

 

Yeah that’s a nice option, although it’s $200 more than an Emporia and I’m also not happy about giving any money to Elon if I can avoid it.

 

Fair point. With our parking situation one car is all I can park to charge at a time, so as long as the one charger can connect to both cars they’ll still have to take turns. Bay Area living problems!

 

I can't see any mention of NACS/J3400 plugs & sockets coming to UK - and that suggests to me we won't be seeing it in EU either. If so, the mfrs are going to have to maintain the 2 flavours ...

Does NACS support 3-phase AC charging? That's a must-have over in Europe, where 3-phase lowish-current is a very common domestic supply system, while UK is mostly single-phase high-ish current.

Most roadside commercial AC chargers in UK are 3-phase, so most EVs either take 7 kW = single-phase 32A like my '38 ( 2 x 3.6 kW AC modules), 7 or 11kW if EV fitted with 3 x 3.6 kW AC modules internally and connected 2-up to single phase, or 3-up for 3-phase, and some EVs can take the whole 22 kW 3-phase (Renault Zoe, maybe some other up-market EVs).

 

Does NACS support 3-phase AC charging? That's a must-have over in Europe, where 3-phase lowish-current is a very common domestic supply system, while UK is mostly single-phase high-ish current.

No. There are only two power pins. DC or single phase AC only.

It would really surprise me if J3400/NACS would be deployed anywhere other than North America. It is not viable anyplace where 3 phase power is widely used.

Some but not all Caribbean and Latin American countries also use single phase 120v and split phase 240v 60Hz power so maybe J3400/NACS could be deployed outside of North America. Given world politics, it would not surprise me if most of those countries would opt for a more worldwide standard than NACS though.

 

So I just purchased a 2025 IONIQ 5 with the NACS charging port. I am about to purchase a level 2 charger but after reading the IONIQ ELECTRONIC reference guide I am confused. On page 14 it states: "AC charging Level 2 is using connector SAE J1772. To use it, an adapter is needed for this vehicle".

It seems odd that that a NCAS charger would not work directly. Can anyone clarify this? Thanks.

 

So I just purchased a 2025 IONIQ 5 with the NACS charging port. I am about to purchase a level 2 charger but after reading the IONIQ ELECTRONIC reference guide I am confused. On page 14 it states: "AC charging Level 2 is using connector SAE J1772. To use it, an adapter is needed for this vehicle".

It seems odd that that a NCAS charger would not work directly. Can anyone clarify this? Thanks.

Look at the port on the car, don't count on manuals being correct.

The shape of the Tesla (J3400/NACS) is different enough to make it absolutely clear.

 

Well it is clearly the NACS port but I thought there might be some proprietary Tesla protocol in the communication. I am all new to the EV world so please excuse my confusion. I would feel more assured if someone with the 2025 model would weigh in.

 

NACS (tecnically J3400) is nothing more than CCS signaling over a Tesla shaped plug. More details here: Tesla Charging Network FAQ Thread

 

I don’t have a 2025 model year but from everything I have read, I will agree with @Arob for DC fast charging: CCS protocol is used over a plug compatible with the Tesla design.

With respect to Level 2 charging which is what you are looking at for your home, I have successfully charged my 2022 Ioniq 5 at a hotel’s Tesla Destination (Level 2) charger by using a simple, dumb, adapter that does no protocol translations. And there are numerous posts in these forums suggesting that a Tesla travel charger is a very good choice for use with the older Ioniq 5s when used with a dumb Tesla to J1772 adapter. So a J1772 EVSE should be the same as a J3400 EVSE other than the plug on the end of the cable.

Personally, if I were starting out from scratch with a 2025 Ioniq 5, I’d use a Level 2 EVSE at home that has a J3400 (NACS) plug.

Since I believe the 2025 comes with a J1772 to NACS adapter, I'd probably just use the adapter that came with the car on my current EVSE with a J1772 plug. If I am wrong about the car coming with and adapter and needed to buy one, then I’d see if buying a replacement cable for my EVSE was cheaper than buying an adapter and then just go with the cheapest option.

 

Since I believe the 2025 comes with a J1772 to NACS adapter, I'd probably just use the adapter that came with the car on my current EVSE with a J1772 plug. If I am wrong about the car coming with and adapter and needed to buy one, then I’d see if buying a replacement cable for my EVSE was cheaper than buying an adapter and then just go with the cheapest option.

I owned a 2019 Tesla Model 3 from 2019 until about three weeks ago. Before that I leased a Chevy Volt plug-in hybrid. Thus, I had a J1772 EVSE when I bought my Tesla, and I continued to use that EVSE via an adapter. I actually bought a second one (the Tesla came with one), so that I could have one permanently attached to the EVSE and keep the other with the car. The adapter was $50 from Tesla at the time, IIRC. I don't know what Hyundai is charging for theirs, but third-party adapters are usually $50 or less, even from reputable sellers. (I do not recommend buying the cheapest adapter available!) AFAIK, ChargePoint is the only EVSE maker that sells a replacement cable, and those go for $200, IIRC. Given how little this gets you compared to just sticking an adapter on the end of a J1772 cable, I'd go the adapter route.

Oh, and yes, the 2025 Ioniq 5 comes with a J1772-to-NACS adapter.

 

Most Tesla owners have been using CCS and J1772 adapters for years and will continue to do so for years to come (probably less and less frequently). Most nonTesla EV owners with CCS/J1772 charging ports will need adapters to access J3400 connectors for an increasing number of Level 1&2 and DC fast chargers for years to come.

Prospective EV buyers are understandably confused by this but at least we're getting closer to universal access to EV charging in North America, even if still involves adapters.

 

Most Tesla owners have been using CCS and J1772 adapters for years and will continue to do so for years to come (probably less and less frequently). Most nonTesla EV owners with CCS/J1772 charging ports will need adapters to access J3400 connectors for an increasing number of Level 1&2 and DC fast chargers for years to come.

Prospective EV buyers are understandably confused by this but at least we're getting closer to universal access to EV charging in North America, even if still involves adapters.

I suspect there would have been slightly less confusion if CCS had become the standard. It’s immediately clear at a glance which adaptor is needed when going from CCS/J1772 source to NACS vehicle. Not so clear when going the other way where you have to look at the stall and know the difference between a DC and AC box, and that’s even before accounting for the large number of Tesla exclusive locations like v1, v2, and urban sites which are unlikely to ever work with any kind of adaptor.