PSA - DO NOT USE LECTRON ADAPTOR w/ Tesla Wall Charger on Rivian

[BoIsADog]

I have had my R1T for almost six months and have been charging it using my Tesla Wall Charger with a Lectron Adapter. Life has been great until a few weeks ago when I started to get charging errors and the truck wouldn't charge. My Rivian Service Center (Kansas City) have been working on my truck and even sent a technician to my house (45 minutes away) to inspect my charging set-up. Turns out the friction caused by the Lectron adaptor causes too much heat build up and fried my R1T charging port and cable assembly on my R1T! When they plugged in my truck at the SC, it fried their charging cable as a result of the bad port. Rivian is fixing the truck under warranty, but will not fix it again if I continue to use this adaptor. The Service Team has been FANTASTIC and we have been working together to figure this out, they are easily the best service I have had out of any cars I have ever owned.

Now the dilemma - buy a Rivian wall charger (might be quickest option) or sell the R1T and get another Tesla? I also have a Tesla Model Y, so if anyone has a Rivian charger with adapter charging a Tesla, I'd like to know if that works and what kind of charging speeds you get? Making the switch of chargers might work if I can get the Tesla charged effectively, but getting an electrician seems to be the short pole in the tent and there are some issues with wiring two chargers in my house that could make this venture pretty pricey, but not being able to get an electrician is the real issue at this time.

I love my R1T and the SC is awesome here in KC, but my wife and I both drive about 90 miles a day each, so charging is a must to make the EVs usable. I would appreciate anyones experience with using a Rivian wall charger on their Tesla, so we can figure out how to move forward.

Sorry to hear. On the flipside, I have two adapters from them and use them in the same set up as you. It's been 2 years with my mustang, no issues, 8 months with a Polestar 2, no issues, 5 months with the R1T, no issues.

Lectron is a good brand overall. I think it's be even more worried using other random Amazon brands.

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[obfuscurity]

Appreciate this "PSA" even if it is an isolated incident. I've been using my Lectron adapter with the Tesla gen-3 wall connector for the past 6 months with no issues. Still, I can see where excessive wear might lead to this scenario. Although I generally only charge once a week, that's enough to give me pause and take a proactive stance.

I've ordered the J1772 Tesla wall connector and have scheduled our electrician to install it in a power-share configuration. I hate the idea of losing more valuable garage wall real estate, but my wife will surely appreciate not having to plan our charging sessions around each other.

 

[PeterSK]

I've never even seen one in person, but on a Tesla or Rivian forum I saw positive comments about the Grizzl-E Duo charger, a single box that shares a 50 or 60 amp circuit between two J-1772 cables (which can be used with the Tesla J-1772 adapter). A single car gets 40 amps, two cars pull 20 amps each, and if one is done it will reserve 10 amps and give the other car 30. I have a second home with a 240v NEMA 14-50 but as the number of EVs among family and friends increases, this is my likely solution. https://grizzl-e.com/grizzl-e-duo/

 

[rhuber]

Jumping in here to mention that I have used the Lectron (pictured below) on and off for a while and it definitely overheats at 48A when plugged into a Tesla Wall Connector. The Rivian would do the right thing and derate to 6kw (from 11/12kw) every time, which was a bit too slow for my use case. I worked around it temporarily (don't do this, probably) by triggering a fan to start when home assistant sees something charging. I then confirmed with an infrared thermometer that nothing got hot (pins included) with the fan in place, but obviously this isn't a permanent solution.

You can almost certainly continue using one of these at lower current, but I'd definitely proceed with caution at its full 48A "rating". I guess I'll buy the slightly-more-expensive teslatap and see how it does.

Edit: also, I own two of the adapters and both behave the same.

 

[R1TFTW]

A perhaps even easier route is tesla may have a J1772 cord they sell and just flip the breaker and install the new cord. Unless that is your only charger. I currently have 2, a rivian charger and a Tesla charger. I also own a Model Y as well. Both have their own charger. Good to know.

If you are in on tesla, you could also buy a j1772 specific one and install that and it will automatically split the load I believe if you put them on same breaker

I heard the mini tap was bad news though and didn’t fit the rivians. Is that wrong? I would have definitely got one if I knew it worked.

 

[obfuscurity]

I've never even seen one in person, but on a Tesla or Rivian forum I saw positive comments about the Grizzl-E Duo charger, a single box that shares a 50 or 60 amp circuit between two J-1772 cables (which can be used with the Tesla J-1772 adapter). A single car gets 40 amps, two cars pull 20 amps each, and if one is done it will reserve 10 amps and give the other car 30. I have a second home with a 240v NEMA 14-50 but as the number of EVs among family and friends increases, this is my likely solution. https://grizzl-e.com/grizzl-e-duo/

The only reason I didn't consider one of these is because I'd prefer to avoid [continuing] using adapters routinely at home. Plus, it's only a 40 amp compared to Tesla's 48 amp power-sharing capability.

 

[caiudalmau]

We had two teslas alternating between a single charger for years. Finally upgraded to the new Tesla J1772 wall connector and installed two of them on a single 60 amp breaker. They power share perfectly and I use the Tesla adapter from the J1772 to charge my wife car nightly. Now we plug both in each night. The adapter that comes with the Tesla is pretty solid and we have not had any issues

" two of them on a single 60 amp breaker" ? Are you sure? You would be over the capacity of that breaker and would be dangerous

 

[PeterSK]

The only reason I didn't consider one of these is because I'd prefer to avoid [continuing] using adapters routinely at home. Plus, it's only a 40 amp compared to Tesla's 48 amp power-sharing capability.

Yeah if you already have a recent Tesla charger then getting a second with J-1772 to share the circuit makes sense. I’m thinking of this for a second home so it’s not everyday use.m and is better than repeatedly plugging in and unplugging Tesla mobile connectors and similar.

 

[solaskaze]

" two of them on a single 60 amp breaker" ? Are you sure? You would be over the capacity of that breaker and would be dangerous

Depends on the setup (e.g. max current from one setup is hardware selectable). I wouldn't rely on software to "do the right thing."
That said: does Rivian allow a maximum current to be set per charge location (in the car)?

 

[PeterSK]

" two of them on a single 60 amp breaker" ? Are you sure? You would be over the capacity of that breaker and would be dangerous

https://www.tesla.com/support/gen-3-wall-connector-power-sharing

 

[caiudalmau]

Depends on the setup (e.g. max current from one setup is hardware selectable). I wouldn't rely on software to "do the right thing."
That said: does Rivian allow a maximum current to be set per charge location (in the car)?

Sure, but if you have a Tesla wall charger at 48Amp working that is already 80% of that breaker capacity, which means that you can not turn on the other at all.

I had one wall charger at home on a 60 amp breaker and added a 50 amp circuit for a 40Amp separate charger on the other side of the garage, because they are on separate circuits I can use them simultaneously. Not sure about the point of sharing a 60Amp and having to be careful about overloading the circuit, easy way to start a fire if you make a mistake

 

[EVDue]

I have had my R1T for almost six months and have been charging it using my Tesla Wall Charger with a Lectron Adapter. Life has been great until a few weeks ago when I started to get charging errors and the truck wouldn't charge. My Rivian Service Center (Kansas City) have been working on my truck and even sent a technician to my house (45 minutes away) to inspect my charging set-up. Turns out the friction caused by the Lectron adaptor causes too much heat build up and fried my R1T charging port and cable assembly on my R1T! When they plugged in my truck at the SC, it fried their charging cable as a result of the bad port. Rivian is fixing the truck under warranty, but will not fix it again if I continue to use this adaptor. The Service Team has been FANTASTIC and we have been working together to figure this out, they are easily the best service I have had out of any cars I have ever owned.

Now the dilemma - buy a Rivian wall charger (might be quickest option) or sell the R1T and get another Tesla? I also have a Tesla Model Y, so if anyone has a Rivian charger with adapter charging a Tesla, I'd like to know if that works and what kind of charging speeds you get? Making the switch of chargers might work if I can get the Tesla charged effectively, but getting an electrician seems to be the short pole in the tent and there are some issues with wiring two chargers in my house that could make this venture pretty pricey, but not being able to get an electrician is the real issue at this time.

I love my R1T and the SC is awesome here in KC, but my wife and I both drive about 90 miles a day each, so charging is a must to make the EVs usable. I would appreciate anyones experience with using a Rivian wall charger on their Tesla, so we can figure out how to move forward.

we have a R1S LE and a MYLR. I decided to purchase a Tesla Wall connector with the J1772

I have had my R1T for almost six months and have been charging it using my Tesla Wall Charger with a Lectron Adapter. Life has been great until a few weeks ago when I started to get charging errors and the truck wouldn't charge. My Rivian Service Center (Kansas City) have been working on my truck and even sent a technician to my house (45 minutes away) to inspect my charging set-up. Turns out the friction caused by the Lectron adaptor causes too much heat build up and fried my R1T charging port and cable assembly on my R1T! When they plugged in my truck at the SC, it fried their charging cable as a result of the bad port. Rivian is fixing the truck under warranty, but will not fix it again if I continue to use this adaptor. The Service Team has been FANTASTIC and we have been working together to figure this out, they are easily the best service I have had out of any cars I have ever owned.

Now the dilemma - buy a Rivian wall charger (might be quickest option) or sell the R1T and get another Tesla? I also have a Tesla Model Y, so if anyone has a Rivian charger with adapter charging a Tesla, I'd like to know if that works and what kind of charging speeds you get? Making the switch of chargers might work if I can get the Tesla charged effectively, but getting an electrician seems to be the short pole in the tent and there are some issues with wiring two chargers in my house that could make this venture pretty pricey, but not being able to get an electrician is the real issue at this time.

I love my R1T and the SC is awesome here in KC, but my wife and I both drive about 90 miles a day each, so charging is a must to make the EVs usable. I would appreciate anyones experience with using a Rivian wall charger on their Tesla, so we can figure out how to move forward.

I have had my R1T for almost six months and have been charging it using my Tesla Wall Charger with a Lectron Adapter. Life has been great until a few weeks ago when I started to get charging errors and the truck wouldn't charge. My Rivian Service Center (Kansas City) have been working on my truck and even sent a technician to my house (45 minutes away) to inspect my charging set-up. Turns out the friction caused by the Lectron adaptor causes too much heat build up and fried my R1T charging port and cable assembly on my R1T! When they plugged in my truck at the SC, it fried their charging cable as a result of the bad port. Rivian is fixing the truck under warranty, but will not fix it again if I continue to use this adaptor. The Service Team has been FANTASTIC and we have been working together to figure this out, they are easily the best service I have had out of any cars I have ever owned.

Now the dilemma - buy a Rivian wall charger (might be quickest option) or sell the R1T and get another Tesla? I also have a Tesla Model Y, so if anyone has a Rivian charger with adapter charging a Tesla, I'd like to know if that works and what kind of charging speeds you get? Making the switch of chargers might work if I can get the Tesla charged effectively, but getting an electrician seems to be the short pole in the tent and there are some issues with wiring two chargers in my house that could make this venture pretty pricey, but not being able to get an electrician is the real issue at this time.

I love my R1T and the SC is awesome here in KC, but my wife and I both drive about 90 miles a day each, so charging is a must to make the EVs usable. I would appreciate anyones experience with using a Rivian wall charger on their Tesla, so we can figure out how to move forward.

We have an R1S LE and a MYLR. We got the Tesla first while we were waiting for the Rivian. I decided to put in a Tesla Wall Connector with the J1772 plug At home. We use the Tesla J1772 adapter that came with the Y to charge it, and just plug right into the R1S To charge it. We’ve been doing this since January and haven’t had any problems. We also have a Rivian charger at our cabin that we use for the R1S. We don’t take the Tesla to the cabin but if we do we’ll use the supercharger in town.

 

[caiudalmau]

https://www.tesla.com/support/gen-3-wall-connector-power-sharing

Really interesting, I wasn't aware that gen 3 could do that, definitely worth in some scenarios if your panel is close to max capacity

 

[wwheelkid]

This isn't very good news...as I am taking delivery of my R1T tomorrow and my charging set up is (was) Tesla - 2018-2019 wall charger to lextron adapter. I am only outputting 40A so this may help but do you think this is more of an isolated incident or do you think that after a period of time (6 months) this could be a problem? I would hope either the charger or the Rivian would have safeguards against this type of problem.

 

[the_mace]

I have had my R1T for almost six months and have been charging it using my Tesla Wall Charger with a Lectron Adapter. Life has been great until a few weeks ago when I started to get charging errors and the truck wouldn't charge. My Rivian Service Center (Kansas City) have been working on my truck and even sent a technician to my house (45 minutes away) to inspect my charging set-up. Turns out the friction caused by the Lectron adaptor causes too much heat build up and fried my R1T charging port and cable assembly on my R1T! When they plugged in my truck at the SC, it fried their charging cable as a result of the bad port. Rivian is fixing the truck under warranty, but will not fix it again if I continue to use this adaptor. The Service Team has been FANTASTIC and we have been working together to figure this out, they are easily the best service I have had out of any cars I have ever owned.

Now the dilemma - buy a Rivian wall charger (might be quickest option) or sell the R1T and get another Tesla? I also have a Tesla Model Y, so if anyone has a Rivian charger with adapter charging a Tesla, I'd like to know if that works and what kind of charging speeds you get? Making the switch of chargers might work if I can get the Tesla charged effectively, but getting an electrician seems to be the short pole in the tent and there are some issues with wiring two chargers in my house that could make this venture pretty pricey, but not being able to get an electrician is the real issue at this time.

I love my R1T and the SC is awesome here in KC, but my wife and I both drive about 90 miles a day each, so charging is a must to make the EVs usable. I would appreciate anyones experience with using a Rivian wall charger on their Tesla, so we can figure out how to move forward.

I have the adapter and that was going to be my setup (and was for a short while). But the Tesla portable charger is limited to 32A and I have a 50A circuit so I got a ChargePoint charger which can do 40A, better for the longer charges for the truck and its J1772. So now i'm doing the inverse and using an adapter to charge the Tesla from a J1772 but Tesla provides that adaptor so im not concerned on impact there.

The Rivian charger has always been out of stock and the price for it isn't competitive. I'd look at other options. Tesla offers a J1772 charger at a competitive price as do many others.

I charge both the Tesla and Rivian with one charger and have it set to only off hours charging (so I get credits from my local electric co). I just plug in whichever vehicle needs charge the most before the off hours comes on. If both need a charge I just swap them in the AM (off hours is 9pm-1pm).

I thought i'd need 2 chargers and was planning on some kind of load balancer (lectron makes one) but turned out for me a single charger has not been a problem at all.

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