Tesla to J1772 Adapter
AudiWorld Senior Member
Joined: Jan 2020
Posts: 964
Likes: 246
From: Near Tampa, Fl
Used my stub tonight to connect to a Tesla destination charger in our Municipal Parking Garage and it worked flawlessly. Tad concerned that the connection between the Tesla connector and the stub was only a friction fit, but it all held together nicely. Not certain if the Tesla connector was missing piece, but I check others I could use for a freee “top-off” in my town.
SWFla-eTron
Joined: May 2019
Posts: 114
Likes: 12
From: Naples, FL
I don’t know the output of the Tesla destination charger I used. Nor did I try to monitor charging rate as I just connected and went to dinner. I only know it worked fine. I understand that eTrons, and all current EVs for that matter, have software that protect it from an incompatible connection.
AudiWorld Senior Member
Joined: Feb 2012
Posts: 711
Likes: 167
From: San Diego, CA
AudiWorld Senior Member
Joined: Feb 2012
Posts: 711
Likes: 167
From: San Diego, CA
TeslaTap worked great
I had real life situation to use my TeslaTap last weekend. Restaurant that only had Tesla destination chargers. Valet told me I need to have a Tesla to make them work. I told him I have an adapter, he indicated "it won't work, but go for it"
Plugged in TeslaTap to the Tesla destination charger. Waited the 30 seconds indicated in the instructions. Plugged it into my Etron, and started charging.
Tesla destination charger was rated at 16 kW
My Teslatap is rated at 40 amps
My Etron was charging at 10.7 kW, which is expected maximum Etron can accept (11 kW minus some losses) - This is more than 40 amps at 240 volts, but the TeslaTap had no problem.
Valet seemed shocked. Gave him good tip.
Plugged in TeslaTap to the Tesla destination charger. Waited the 30 seconds indicated in the instructions. Plugged it into my Etron, and started charging.
Tesla destination charger was rated at 16 kW
My Teslatap is rated at 40 amps
My Etron was charging at 10.7 kW, which is expected maximum Etron can accept (11 kW minus some losses) - This is more than 40 amps at 240 volts, but the TeslaTap had no problem.
Valet seemed shocked. Gave him good tip.
AudiWorld Member
Joined: Oct 2020
Posts: 310
Likes: 60
How is the fit on the Tesla side? Does it snap into place or just rely on friction? I'd be slightly concerned that a vandal could remove a 40A line while delivering power. Normally EVs stop current before the release.
As far as Tesla destination chargers, IIRC the company used to supply them free of charge to hotels. Around 2019 or so that changed and the hotels had to purchase them.
As far as Tesla destination chargers, IIRC the company used to supply them free of charge to hotels. Around 2019 or so that changed and the hotels had to purchase them.
AudiWorld Senior Member
Joined: Feb 2012
Posts: 711
Likes: 167
From: San Diego, CA
How is the fit on the Tesla side? Does it snap into place or just rely on friction? I'd be slightly concerned that a vandal could remove a 40A line while delivering power. Normally EVs stop current before the release.
As far as Tesla destination chargers, IIRC the company used to supply them free of charge to hotels. Around 2019 or so that changed and the hotels had to purchase them.
As far as Tesla destination chargers, IIRC the company used to supply them free of charge to hotels. Around 2019 or so that changed and the hotels had to purchase them.
AudiWorld Newcomer
Joined: Oct 2020
Posts: 3
Likes: 1
Taking delivery of my E Tron tonight. I have two Tesla Wall Connectors sharing a 50a breaker. Was using one for my model X and the other for my now replaced 530e. Will update with compatibility soon. For what it's worth, I have the 50a TeslaTap
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AudiWorld Junior Member
Joined: Sep 2020
Posts: 13
Likes: 9
Wanted to add my two cents here.
I'm coming from multiple Teslas to the e-tron (and I love the car so far!), so I have both a spare UMC (the small charger that Tesla provided in each car they sell) connected to a dedicated NEMA 14-50 plug and an hardwired 50a HPWC (Tesla High Power Wall Charger, the one you have to buy from Tesla to permanently mount in your garage). I've used both the TeslaTap and Lectron adapters to varying degrees of success. I say varying, for these reasons:
If you're just plugging either adapter (TeslaTap or Lectron) into either the UMC or HPWC and are starting to charge right away, both work flawlessly and charge like champs. HOWEVER, if you are plugging either adapter (TeslaTap or Lectron) into a UMC and have your e-tron set to a charge timer (i.e., preferred charging hours, charge by xx time in the morning, etc.), such that the e-tron recognizes a J1772 has been plugged in, but then sends a signal to stop the car from charging immediately, the e-tron trips the circuit on the UMC and you get the red light of death (I don't know if that's what it's actually called, but that's what I'm calling it!) and you'll wake up to a car that is not charged. It took me a while to figure this out, because all seems fine at first, the car recognizes the J1772 plug, then starts flashing a quick green flash... but later on when the car then sends the signal to the charger saying "hey, start charging", that's when the UMC gets tripped and goes to red. THAT SAID, if you are plugging either adapter (TeslaTap or Lectron) into a HPWC with the aforementioned timer settings, the thing works flawlessly, the charge timer works and you will not wake up in the morning to an uncharged car! When you plug the J1772 adapter connected to the HPWC, you hear the relay energize, and then when the car sends the signal back to the charger saying stop, you hear the relay pop one more time to go back to a wait state. Then, later on when it's time to charge, the car sends the signal back to the HPWC, the relay energizes, and charging happens with no issues.
I've had my e-tron now for about 6 weeks, and it took about 4 weeks of fiddling around with these adapters/Tesla chargers to figure this out.
Hope this helps someone... I think this is my first post ever on these forums...long time lurker, first time poster as they say!
Cheers,
-Eddie
I'm coming from multiple Teslas to the e-tron (and I love the car so far!), so I have both a spare UMC (the small charger that Tesla provided in each car they sell) connected to a dedicated NEMA 14-50 plug and an hardwired 50a HPWC (Tesla High Power Wall Charger, the one you have to buy from Tesla to permanently mount in your garage). I've used both the TeslaTap and Lectron adapters to varying degrees of success. I say varying, for these reasons:
If you're just plugging either adapter (TeslaTap or Lectron) into either the UMC or HPWC and are starting to charge right away, both work flawlessly and charge like champs. HOWEVER, if you are plugging either adapter (TeslaTap or Lectron) into a UMC and have your e-tron set to a charge timer (i.e., preferred charging hours, charge by xx time in the morning, etc.), such that the e-tron recognizes a J1772 has been plugged in, but then sends a signal to stop the car from charging immediately, the e-tron trips the circuit on the UMC and you get the red light of death (I don't know if that's what it's actually called, but that's what I'm calling it!) and you'll wake up to a car that is not charged. It took me a while to figure this out, because all seems fine at first, the car recognizes the J1772 plug, then starts flashing a quick green flash... but later on when the car then sends the signal to the charger saying "hey, start charging", that's when the UMC gets tripped and goes to red. THAT SAID, if you are plugging either adapter (TeslaTap or Lectron) into a HPWC with the aforementioned timer settings, the thing works flawlessly, the charge timer works and you will not wake up in the morning to an uncharged car! When you plug the J1772 adapter connected to the HPWC, you hear the relay energize, and then when the car sends the signal back to the charger saying stop, you hear the relay pop one more time to go back to a wait state. Then, later on when it's time to charge, the car sends the signal back to the HPWC, the relay energizes, and charging happens with no issues.
I've had my e-tron now for about 6 weeks, and it took about 4 weeks of fiddling around with these adapters/Tesla chargers to figure this out.
Hope this helps someone... I think this is my first post ever on these forums...long time lurker, first time poster as they say!
Cheers,
-Eddie
AudiWorld Member
Joined: Jul 2010
Posts: 354
Likes: 73
Wanted to add my two cents here.
I'm coming from multiple Teslas to the e-tron (and I love the car so far!), so I have both a spare UMC (the small charger that Tesla provided in each car they sell) connected to a dedicated NEMA 14-50 plug and an hardwired 50a HPWC (Tesla High Power Wall Charger, the one you have to buy from Tesla to permanently mount in your garage). I've used both the TeslaTap and Lectron adapters to varying degrees of success. I say varying, for these reasons:
If you're just plugging either adapter (TeslaTap or Lectron) into either the UMC or HPWC and are starting to charge right away, both work flawlessly and charge like champs. HOWEVER, if you are plugging either adapter (TeslaTap or Lectron) into a UMC and have your e-tron set to a charge timer (i.e., preferred charging hours, charge by xx time in the morning, etc.), such that the e-tron recognizes a J1772 has been plugged in, but then sends a signal to stop the car from charging immediately, the e-tron trips the circuit on the UMC and you get the red light of death (I don't know if that's what it's actually called, but that's what I'm calling it!) and you'll wake up to a car that is not charged. It took me a while to figure this out, because all seems fine at first, the car recognizes the J1772 plug, then starts flashing a quick green flash... but later on when the car then sends the signal to the charger saying "hey, start charging", that's when the UMC gets tripped and goes to red. THAT SAID, if you are plugging either adapter (TeslaTap or Lectron) into a HPWC with the aforementioned timer settings, the thing works flawlessly, the charge timer works and you will not wake up in the morning to an uncharged car! When you plug the J1772 adapter connected to the HPWC, you hear the relay energize, and then when the car sends the signal back to the charger saying stop, you hear the relay pop one more time to go back to a wait state. Then, later on when it's time to charge, the car sends the signal back to the HPWC, the relay energizes, and charging happens with no issues.
I've had my e-tron now for about 6 weeks, and it took about 4 weeks of fiddling around with these adapters/Tesla chargers to figure this out.
Hope this helps someone... I think this is my first post ever on these forums...long time lurker, first time poster as they say!
Cheers,
-Eddie
I'm coming from multiple Teslas to the e-tron (and I love the car so far!), so I have both a spare UMC (the small charger that Tesla provided in each car they sell) connected to a dedicated NEMA 14-50 plug and an hardwired 50a HPWC (Tesla High Power Wall Charger, the one you have to buy from Tesla to permanently mount in your garage). I've used both the TeslaTap and Lectron adapters to varying degrees of success. I say varying, for these reasons:
If you're just plugging either adapter (TeslaTap or Lectron) into either the UMC or HPWC and are starting to charge right away, both work flawlessly and charge like champs. HOWEVER, if you are plugging either adapter (TeslaTap or Lectron) into a UMC and have your e-tron set to a charge timer (i.e., preferred charging hours, charge by xx time in the morning, etc.), such that the e-tron recognizes a J1772 has been plugged in, but then sends a signal to stop the car from charging immediately, the e-tron trips the circuit on the UMC and you get the red light of death (I don't know if that's what it's actually called, but that's what I'm calling it!) and you'll wake up to a car that is not charged. It took me a while to figure this out, because all seems fine at first, the car recognizes the J1772 plug, then starts flashing a quick green flash... but later on when the car then sends the signal to the charger saying "hey, start charging", that's when the UMC gets tripped and goes to red. THAT SAID, if you are plugging either adapter (TeslaTap or Lectron) into a HPWC with the aforementioned timer settings, the thing works flawlessly, the charge timer works and you will not wake up in the morning to an uncharged car! When you plug the J1772 adapter connected to the HPWC, you hear the relay energize, and then when the car sends the signal back to the charger saying stop, you hear the relay pop one more time to go back to a wait state. Then, later on when it's time to charge, the car sends the signal back to the HPWC, the relay energizes, and charging happens with no issues.
I've had my e-tron now for about 6 weeks, and it took about 4 weeks of fiddling around with these adapters/Tesla chargers to figure this out.
Hope this helps someone... I think this is my first post ever on these forums...long time lurker, first time poster as they say!
Cheers,
-Eddie