Pilot11220

We're expecting to take delivery for a e-tron suv in July in NJ. What is the charging cable that comes with the vehicle? I'm hoping it has a NEMA 14-50 plug and a J1772 EV port.

And how long is it?

There's just very little information on Audi's site about such details for the etron suv.

Thanks in advance.

SCarGuy

NEMA 14-50 plug and a J1772 EV port - yes
It is 15 ft long

SDakota

The Audi EVSE comes with a NEMA 14-50 plug for use on 240V circuits (Level 2 charging) and a NEMA 5-15 plug for 120V circuits (Level 1 charging).

Audi doesn't disclose the full specifications for its EVSE, but here is what I've experienced in the US on 120V & 240V circuits. The Amperage is assumed, because the EVSE doesn't report any data so you have to extrapolate from the kW displayed by the vehicle or the MyAudi app.

240V @ 100% = 40A = 9.6kW = 8.6kW delivered to the vehicle after ~10% efficiency losses
240V @ 50% = 20A = 4.8kW = 4.3kW delivered
120V @ 100% = 9A = 1.08kW = 1.0kW delivered
120V @ 50% = 6A = 0.72kW = 0.6kW delivered before charging stops due to power dropping below 880W as mentioned in the manual (i.e. the 50% setting is useless on a 120V circuit)

Make sure the circuit you use is dedicated to the EVSE and nothing else, and don't exceed 80% of the circuit's rated Amps (i.e. if you charge at 40A, the circuit needs to be rated for at least 50A). Press and hold the button on the EVSE to switch between 50% and 100%.

If you're going to install a 14-50 outlet, you may want to buy a high quality outlet like Hubbell and an appropriate electrical box and faceplate for it because many electricians install the cheaper Leviton versions which have a history of melting from EVSE use.

https://www.audiworld.com/forums/aud...cable-2987634/

rdgrimes

Rather than start a new thread I'll resurrect this one.
The Audi provided portable EVSE is rated for 9.6 kW. But it appears that the e-tron onboard AC charger is actually capable of something like 11.5 kW. Is this correct? Just curious and considering setting up a hardwired 50A EVSE.

A4 Phil

True.

ThomasW

That is correct. I believe it is 11 kW but that is just from memory. So if you want that extra charge speed, you would have to go with a 50A EVSE which in turn requires hardwiring and a more potent circuit. You pretty much have to bump it up to 70A as the 60A would only let you continuously use 48A based on the 80% rule in the NEC.

JNealCox

Realistically, at home you will never charge from 0 to 100% on your L2 charger, which with the Audi EVSE on a 50A circuit takes about 10 hours. More likely, you will be going from something like 40 to 80%, which would take about 3.5 hours on that 50A circuit. If you upgrade your wall circuit to 60A and a hard wired charger, to get the maximum rate, you will cut that 40 to 80% time down to maybe 3 hours. Not really worth it to me. I have actually used the Audi EVSE on my etron (50A circuit) since Nov 2019 with no issues.

mtberman

I would echo the last post. Reality dictates charging. When I arrive home, I don't charge unless I'm driving later or it's really low, like 30% or less.

If I do charge, it's usually from around 40% to 80% as stated above. That takes 4 hours at my house. More often than not, if I'm done driving for the day I plug the car in and pull out my phone. As I'm walking away, I switch it to Timer mode and confirm one of the timers is for the next time I plan to be driving. That way, the car charges in the wee hours. As it should.

New EV owners focus so much on charging. I did the same. But once you've had one you realize you only charge the car 1-2 or maybe 3 times a week unless you're a big commuter. In my house we ended up buying 2 different charging cables and getting a third one with the Audi. We have only ever used one at a time.

rdgrimes

11.5kW translates to 48A at 240v I think, so a 60A circuit should suffice.
I doubt I'll ever need to charge the e-tron at more than 40A, but I was thinking about future-proofing.

SDakota

You lose approximately 10% due to heat/inefficiency between the wall and the battery, so a 48A EVSE should look something like this:
A x V / 1000 = kW
48A x 240V / 1000 = 11.52 kW at the wall minus 10% = 10.4kW delivered to the battery

Even a 48A EVSE on a 60A circuit will probably fall just short of the vehicle's 11kW maximum.

Re: futureproofing, consider that some smart EVSEs can load share. You could have two load sharing EVSEs connected to the same circuit and they will either divide the load between them, or one will charge vehicle A and when it's finished the other will charge vehicle B. So you still may not need as much power as you think as long as you can charge overnight. Although if you only have one EVSE and you need to manually switch it between vehicles, then I guess faster charging is better so you don't have to get up in the middle of the night to switch the plug between vehicles.

JuiceBox load sharing:
https://support-emobility.enelx.com/...-Load-Sharing-