Charging with Tesla Mobile Connector Problematic

[Revelstone]

Hello
When we received our new Rivian (R1S, 2026) it would not charge at all with our charging cable (Tesla mobile connector plugged in to a 240V socket) until we hard reset the vehicle.
Subsequently we have found charging only works if we unplug the cable first.
Interestingly, we have also found that charging the Tesla fails if it has been used on the Rivian previously - so it looks like the mobile connector has some kind of memory of the previous car it was used to charge.

Does this accord with anyone else's experience? Given all of this, we're also looking for recommendations for a (very) reasonably priced charger that will definitely work with both vehicles.
Thanks in advance!

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[SANZC02]

Hello
When we received our new Rivian (R1S, 2026) it would not charge at all with our charging cable (Tesla mobile connector plugged in to a 240V socket) until we hard reset the vehicle.
Subsequently we have found charging only works if we unplug the cable first.
Interestingly, we have also found that charging the Tesla fails if it has been used on the Rivian previously - so it looks like the mobile connector has some kind of memory of the previous car it was used to charge.

Does this accord with anyone else's experience? Given all of this, we're also looking for recommendations for a (very) reasonably priced charger that will definitely work with both vehicles.
Thanks in advance!

I use an Emporia charger, works great on my Tesla and Rivian. My charger is a J1772 and I use an adapter for the Tesla but they have a J3400 version.

You can check out a web site called State of Charge, Tom Moloughney tests a lot of chargers and rates them.

 

[jrmbadger]

What version of the mobile connector are you using? If it was a pre 2021 it may not work. From wikipedia “it was not until 2021 that Tesla vehicles began supporting the expanded communications protocol that is specified as part of NACS.” Wiki Eg the communication protocol on older tesla NACS devices is different. Newer Tesla chargers support both.

 

[TampaR1T]

I have and use a 2020 Tesla mobile connector with no problems. If you're having an issue with both cars, it's obviously likely the mobile charger...

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