[S7mrasch]

Hello all, I was planning on buying a Tesla and ended up buying the gen 3 wall connector to level 2 charge it. I ended up buying an EUV but someone at the dealership said the tesla charger won’t work with Chevy even with an adapter, can anyone confirm or deny this before I install it, chevy has been no help at all.

 

[GJETSON]

Hello all, I was planning on buying a Tesla and ended up buying the gen 3 wall connector to level 2 charge it. I ended up buying an EUV but someone at the dealership said the tesla charger won’t work with Chevy even with an adapter, can anyone confirm or deny this before I install it, chevy has been no help at all.

Someone at the dealership is full of crap.

Tesla to J1772 Adapter – EVSE Adapters

www.evseadapters.com

 

[The Other Tom]

Lots of people have reported success with an adapter.

 

[jmcbrew]

The Lectron 48 amp adapter is well regarded and should work fine with your EVSE and EUV.

 

[cwerdna]

Hello all, I was planning on buying a Tesla and ended up buying the gen 3 wall connector to level 2 charge it. I ended up buying an EUV but someone at the dealership said the tesla charger won’t work with Chevy even with an adapter, can anyone confirm or deny this before I install it, chevy has been no help at all.

It depends. Some adapters in their pictures where they sell them specifically list which gens of WCs they work with and which they don't.

Not that I recommend this but these are examples w/pics saying they won't work on gen 3.
https://www.amazon.com/Evcars-Charging-Self-Locking-Connector-Destination/dp/B08HGC4618

Amazon.com: AKSESROYAL Tesla Charger to J1772 Compatible Charging Adapter, Wall Connector - Connects UMC Tesla High Charging Box Stations to SAE J1772 Socket to Electro Vehicles & Cars, Max 48A & 250V : Automotive

Buy AKSESROYAL Tesla Charger to J1772 Compatible Charging Adapter, Wall Connector - Connects UMC Tesla High Charging Box Stations to SAE J1772 Socket to Electro Vehicles & Cars, Max 48A & 250V: Charging Station Accessories - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

www.amazon.com

Keruida Tesla to SAE J1772 Charging Adapter Max 48A 250V Portable Fast Charging, Compatible with Tesla Wall Box, Tesla High Powered Connector, Destination Charger, and Mobile Connector

Buy Keruida Tesla to SAE J1772 Charging Adapter Max 48A 250V Portable Fast Charging, Compatible with Tesla Wall Box, Tesla High Powered Connector, Destination Charger, and Mobile Connector at Amazon. Customer reviews and photos may be available to help you make the right purchase decision!

www.amazon.com

For earlier gens, there was even a DIP switch under the covers for digital signalling (e.g. Tesla to J1772 Adapter?). Some adapters may not work in one of the switch positions.

There's also Gen 3 Wall Connector Access Control.

I'm also not sure if Tesla pushes to upgrade Destination Chargers with Gen 3 Wall Connectors, enables paid charging is working but I've seen reports of someone on TMC having to pay for charging on a gen 3 WC.

Bottom of Second Generation Wall Connector mentions how to tell gen 1 vs. gen 2. You can find gen 3 manuals at Installing a Wall Connector.

 

[AndrewH]

I have personally charged my Bolt on a Tesla destination charger with my Lectron adapter that I bought on Amazon for $159
[Only for J1772 EVs] Lectron - Tesla to J1772 Adapter, Max 40 Amp & 250V - https://a.co/d/0Y1HxTz

 

[siberia37]

Hello all, I was planning on buying a Tesla and ended up buying the gen 3 wall connector to level 2 charge it. I ended up buying an EUV but someone at the dealership said the tesla charger won’t work with Chevy even with an adapter, can anyone confirm or deny this before I install it, chevy has been no help at all.

It should work fine with a Tesla adapter but be careful to get one with high enough amperage for the EUV. The 2022+ EUV has a 11kwh capable L2 charger. So basically, if your Tesla wall connector is able to provide its max of 48 amps and your Adapter is only rated to 40 amps then you might have issues. I don't know if those adapters are smart enough to say "Whoa don't give more than 40 amps to this car" .. my guess is no.

 

[cwerdna]

It should work fine with a Tesla adapter but be careful to get one with high enough amperage for the EUV. The 2022+ EUV has a 11kwh capable L2 charger. So basically, if your Tesla wall connector is able to provide its max of 48 amps and your Adapter is only rated to 40 amps then you might have issues. I don't know if those adapters are smart enough to say "Whoa don't give more than 40 amps to this car" .. my guess is no.

'22 Bolt has a 11.x kW capable OBC. Charging power and rate are measured in kW, not kWh.

For the bolded part, the adapter would need to alter the J1772 pilot signal duty cycle. See Basics of SAE J1772. Tesla WCs are J1772 behind the scenes. The EVSE via that duty cycle tells the attached car how much can be drawn at max. The vehicle must comply by drawing no more than that.

 

[cwerdna]

View attachment 43345
I have personally charged my Bolt on a Tesla destination charger with my Lectron adapter that I bought on Amazon for $159
[Only for J1772 EVs] Lectron - Tesla to J1772 Adapter, Max 40 Amp & 250V - https://a.co/d/0Y1HxTz

And which generation is that? There are 3 gens with 4 possible part numbers for different versions of gen 1, another gen 2 and at least another for gen 3.

 

[ARCowboy]

It should work fine with a Tesla adapter but be careful to get one with high enough amperage for the EUV. The 2022+ EUV has a 11kwh capable L2 charger. So basically, if your Tesla wall connector is able to provide its max of 48 amps and your Adapter is only rated to 40 amps then you might have issues. I don't know if those adapters are smart enough to say "Whoa don't give more than 40 amps to this car" .. my guess is no.

• Tesla destination chargers are by default 40A circuits, but capable of up to 48A.
• The Bolt can only take 11,000 Watts max, which means the vehicle will limit how many amps it takes. Those Lectron adapters are almost perfectly spec'd for the bolt it seems, with 48A limitations. The bolt might pull 48A out of that if charging in the ideal ranges, at the ideal temperatures.
• Volts are always given, Amps are not always taken. To use the common electrical analogy of plumbing, Volts are how wide the pipe is and Amps are how much water is flowing through it. You always have that same diameter pipe, but you don't always turn the faucet/hose on full blast. The relationship between Volts and Amps is Watts (Volts * Amps = Watts).

I would also assume that any SAE standard involves at least a 1.25x safety margin, so the ampacity of that 48A adapter should, in reality, be around 60 since electrical load limitations are really about heat (passing electricity through copper/conductive metals means resistance which creates heat. More copper/bigger wires lowers resistance but also spreads the heat out over a bigger surface area). But it is made in China so it could be exactly 48A.

Anyway, probably more that you were asking about but both 40A and 48A seem like safe numbers and your bolt should be fine with either. I would recommend people buy the 48A version to be safe in all situations, and probably wouldn't charge my Bolt with a low SoC with the 40A adapter unless I knew that Tesla charger was limited to 40A because there are a few scenarios in which the bolt could end up pulling more than 40A. I just hope there is some sort of electronics in the adapter that negotiates with the Tesla charger based on what the car has negotiated with the adapter ?


240v * 48A = 11.52kW

If we lower the Volts, Bolts could pull more than 48A:

If we further lower the Volts, higher likelihood of pulling more than 40A:

*I'm not sure why it would drop to 200v, but for worst case planning

I think this is the average use case:

 

[jmcbrew]

View attachment 43359
*I'm not sure why it would drop to 200v, but for worst case planning

200 volts wouldn’t be uncommon in a commercial setting. Most commercial EVSEs run on 208v, and the actual voltage can vary. One of the 208v transformers at my work was running at about 198v until our electrician moved to another tap.

 

[ARob]

Tesla Tap sells not only adapters, but they custom make Tesla wall units with J1772 plugs.

The adapter is a great solution for home, and on the road. But, order the higher powered adapters for those times you use destination chargers > 32A. The 2022+ Bolts can take 48A on AC charging, and if the destination charger is capable of > 32A, the 40A adapters would overheat.

 

[NortonCommando]

..I have personally charged my Bolt on a Tesla destination charger with my Lectron adapter ...

I want one!
But I'd be concerned about having this expensive adapter just hanging out in the breeze.
It doesn't have the hole for a small pad lock like some J1772 handles.
What else is available that can be locked in place?

Oh, and OP, do you know how to tell if a car salesman is lying? (old one...)

 

[ARob]

I want one!
But I'd be concerned about having this expensive adapter just hanging out in the breeze.
It doesn't have the hole for a small pad lock like some J1772 handles.
What else is available that can be locked in place?

Tesla Tap has a lock hole, and even sells a small lock. It won't prevent unplugging the T connector from the adapter, but will lock the adapter to your charging port.

 

[MichBolt]

• ...The bolt might pull 48A out of that if charging in the ideal ranges, at the ideal temperatures...

With the charging tapers the battery will take less and less amps as it fills up...

Just a clarification - Level 2 charging does not have the kind of taper that DCFC charging does. In general, the Bolt will pull the maximum that it can on Level 2 at all temperatures and states of charge, except I have seen a taper at the very end of the charge.

 

[ARCowboy]

200 volts wouldn’t be uncommon in a commercial setting. Most commercial EVSEs run on 208v, and the actual voltage can vary. One of the 208v transformers at my work was running at about 198v until our electrician moved to another tap.

Good to know. Is that intentionally 208v ? Like a 3 phase 208vAC line ? Or 208v that started as higher but saw % drop over run length from something higher ?

Just a clarification - Level 2 charging does not have the kind of taper that DCFC charging does. In general, the Bolt will pull the maximum that it can on Level 2 at all temperatures and states of charge, except I have seen a taper at the very end of the charge.

Oh, thank you. I appreciate your insight and correction. I'll correct my original post.

 

[NortonCommando]

Good to know. Is that intentionally 208v ? Like a 3 phase 208vAC line ? ...

Right. Some sites are using 2 of the 3 phases from the local connection.
I'll see 6.6kW from an EVSE when on 208V.
And I smile when I see ~7.2 kW from one that's on a true 240V source!
The car's OBC does not care.

Not a huge difference...

 

[NortonCommando]

Tesla Tap has a lock hole, and even sells a small lock...

Thanks for the info!
I can't see the lock hole in their pictures.
I assume it's in the black release button and doesn't show up in the pictures.
An opportunity for improvement....

 

[ARob]

Thanks for the info!
I can't see the lock hole in their pictures.
I assume it's in the black release button and doesn't show up in the pictures.
An opportunity for improvement....

It is there, on the release handle. It doesn't show well in the pics, but easy to use with the keyed lock they sell.

 

[jmcbrew]

I want one!
But I'd be concerned about having this expensive adapter just hanging out in the breeze.
It doesn't have the hole for a small pad lock like some J1772 handles.
What else is available that can be locked in place?

Oh, and OP, do you know how to tell if a car salesman is lying? (old one...)

The new 48a Lectron adapter does have a lock hole.