Lectron Tesla to J1772 Adapter..it pulls 48A and is only rated 40A (Caution!)

phands said:

Hi folx,

Have had my new ID.4 pro S for about 2 weeks, and absolutely love it. With the 3 years free charging I'm not worried about running out...but as an electronic engineer, I like to have contingency plans. One of our neighbors has a Tesla, with a home Wall Charger in our shared parking garage (NYC co-op building), and he kindly offered let us use it for any emergencies - we pay for the charge delivered, of course.

After a bit of research, we bought the Lectron - Tesla to J1772 Adapter (Max 40A & 250V), and it's really simple and quick to use. A little on the expensive side at $160, but solid and well made, and very portable. After a test charge today, I can say it works well, and I'd recommend it. And what price peace of mind??

https://www.amazon.com/Lectron-Tesla-Charger-J1772-Adapter/dp/B07V7V2QT8

Hope this is useful.

Paul

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Is your car pulling 48 A through your neighbor's Tesla wall unit using this cable rated for 40 A?

You will risk warranty if you get on Tesla destination charger that is set for 48 or even 80 amp gen1 and Lectron adapter rated at 40 amp you can cause fire that will be pointed at you when they find out you are using under rated Tesla adapter.
..be warned....if you look at my posts you will find more about this....

TPG said:

Is your car pulling 48 A through your neighbor's Tesla wall unit using this cable rated for 40 A?

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That's a really great question..and i went down to check it at midnight last night, and the Lectron adapter was hot! I'm going to return it, and perhaps edit to use this post as a warning instead! I did find that EVSEAdapters do an 80A rated adapter with some limited intelligence built in. Any opinions on that?

I would go with 60 amp continues rating for this adapter minimum as safety margin or higher....higher it is less heat there will be.
And look for one that has flexible style like Lectron..... Lectron should be coming with 60 and 80 continues amp ratings.

Here is just one of the examples where someone with 40 amp adapter hooked to Tesla’s Destin charger capable communicate 80 amp continues....while ID4 is rated max 48....you will be exceeding 8 amp over 40 amp adapter you have. ... wait for one that will be coming out with 60 amp minimum or buy 80 amp flex adapter. ...and you will be good for future or Porsche if ordered with higher onboard inverter than 48A.

You can still use one you bought with Tesla UMC portable EVSE that is rated max 32 amp and it is very versatile regarding how small and easy is to use...

VW TECHNICIAN said:

Seascape Beach Resort | Aptos, CA | EV Station

EV charging for guests and patrons. Please see front desk. 3 Tesla Wall Connectors - 80A. 1 ClipperCreek - 48A

www.plugshare.com

Here is just one of the examples where someone with 40 amp adapter hooked to Tesla’s Destin charger capable communicate 80 amp continues....while ID4 is rated max 48....you will be exceeding 8 amp over 40 amp adapter you have. ... wait for one that will be coming out with 60 amp minimum or buy 80 amp flex adapter. ...and you will be good for future or Porsche if ordered with higher onboard inverter than 48A.

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I heard that the high powered Tesla Destination Chargers are a legacy product... newer TDC are only 32A. Not really sure if EVs will be coming out with >48A OBC but I guess time will tell. Personally, I got a 50A version for 48A charging and I think that's enough.

p7wang said:

I heard that the high powered Tesla Destination Chargers are a legacy product... newer TDC are only 32A. Not really sure if EVs will be coming out with >48A OBC but I guess time will tell. Personally, I got a 50A version for 48A charging and I think that's enough.

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Porsche could be ordered with higher than 48...and regarding Tesla gen 2 destination chargers are max out at 48 amp....you can still buy gen 1 capable 80 amp....and many resorts with old generation will not be changed to less powerful unless they go bad....and what you think is enough ... is to check your adapter after 30 minutes delivering 48A from Tesla destination charger...considering you know it is actually set for 48A and check with infrared scanner or thermal imaging camera for heating.... this is grayed territory be very careful what someone is trying to convince you and what actually is written on the paper. If there is heat that you can feel touching by hand on the flexible part or anywhere on each end of the adapters that would be bad sign.

Also see for silicone grease and apply around the edges where J1772 adapter and charging port on ID4 meets each other....do not lubricate terminals for J1772 or DC-DC charging. ... this could be done with small cotton swabs

phands said:

That's a really great question..and i went down to check it at midnight last night, and the Lectron adapter was hot! I'm going to return it, and perhaps edit to use this post as a warning instead! I did find that EVSEAdapters do an 80A rated adapter with some limited intelligence built in. Any opinions on that?

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Limited intelligence.....i would love to hear about it and if possible written on the paper as evidence.
Let's see if you can get it.

I think he means that if you're buying an 80A adapter exclusively for an ID.4 with today's 48A onboard charger (and probably getting rid of the adapter when selling ID.4) that it is overkill. ID.4 can't ever ask for more than 48A...or could that be in software. nah

I took your suggestion to mean to go for 80A to be future proof, or maybe to help out a Taycan at Gen 1 80A Tesla connector. Wait, isn't the Taycan 48A, too. idk 🤷‍♂️

Tinman said:

I think he means that if you're buying an 80A adapter exclusively for an ID.4 with today's 48A onboard charger (and probably getting rid of the adapter when selling ID.4) that it is overkill. ID.4 can't ever ask for more than 48A...or could that be in software. nah

I took your suggestion to mean to go for 80A to be future proof, or maybe to help out a Taycan at Gen 1 80A Tesla connector. Wait, isn't the Taycan 48A, too. idk 🤷‍♂️

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It could be ordered with higher inverter amp ratings...and 80 amp adapter is good for future proofing if you decide to go to Pickup EV or anything over 100 kWh battery pack... and using 80 amp adapter is overkill but you will have adapter that is bullet proof.... i have Lectron 40A with UMC portable Tesla EVSE and Tesla tap 80A.
. And they are great quality....
But Lectron 40A adapter is not for Tesla destination chargers.

I reached out to the makers of Tesla Tap because they have a 50A adapter. They got back to me and said the 50A was rated for 40A continuous. For the ID4 (and any EV with a 48A capability), the 60A minitap or 80A Tesla Tap was the recommendation. Hope that helps.

silverelan said:

I reached out to the makers of Tesla Tap because they have a 50A adapter. They got back to me and said the 50A was rated for 40A continuous. For the ID4 (and any EV with a 48A capability), the 60A minitap or 80A Tesla Tap was the recommendation. Hope that helps.

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Their web site seems to disagree. I got the 50A specifically because their website says it will do 50A.


"We do not list all of the vehicles that are compatible as our bypass circuit makes the TeslaTap 50 compatible with ALL US built EV’s with a charge rate up to 50 AMPS @ 250VAC (12.5 KW)."


"We do not list all of the vehicles that are compatible as our bypass circuit makes the TeslaTap 40 compatible with ALL US built EV’s with a charge rate up to 40 AMPS @ 250VAC (10 KW)."

p7wang said:

Their web site seems to disagree. I got the 50A specifically because their website says it will do 50A.

TeslaTap 50 AMP - HIGH POWER

www.umc-j1772.com

"We do not list all of the vehicles that are compatible as our bypass circuit makes the TeslaTap 50 compatible with ALL US built EV’s with a charge rate up to 50 AMPS @ 250VAC (12.5 KW)."

TeslaTap 40 AMP

www.umc-j1772.com

"We do not list all of the vehicles that are compatible as our bypass circuit makes the TeslaTap 40 compatible with ALL US built EV’s with a charge rate up to 40 AMPS @ 250VAC (10 KW)."

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I know. That's why I emailed them to clarify. I shared their response and recommendation. Seems like the 60A mini or 80A flex is the safer choice if you're going to have your car taking 48A on a 60A breaker.

silverelan said:

I know. That's why I emailed them to clarify. I shared their response and recommendation. Seems like the 60A mini or 80A flex is the safer choice if you're going to have your car taking 48A on a 60A breaker.

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Can you post the whole email? Sounds like the respondent has 'limited intelligence' or Tesla Tap is making false claims on their web site.
I would like it documented here so I can get them to let me trade my 50A for a 60A free of charge.

I read on umc-j1772 store TeslaTap rating is for continuous use. That means you can charge an iD4 with a 50 amp Tesla Tap.

I read more closely, they say the 40 amp version can be used for 40 amp charging up to 3 hours and 32 amp continuously. For the 50 amp version they say it can be used for 50 amp charging, no other details.

I also emailed them to clarify with specific mention of iD4.

I emailed Lectron a few weeks ago:

Do you plan on introducing a 50 Amp version of the Lectron - Tesla to J1772 Adapter soon? Volkswagen ID.4 will negotiate 48 Amp charging with Tesla Destination chargers that can provide it. This would be higher than the current Lectron model’s 40 Amp rating.

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Answer:

Thank you very much for your feedback and we very much appreciate your suggestions. This isn't on our development pipeline yet, but I will pass on your remarks to our internal team, as we are always looking for ways to keep our customers happy.

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