Rivian Wall Charger Keeps Dropping to reduced level

[DCFC]

Seems the vehicle is derating to protect itself, to prevent the charge port from getting too hot. Certainly annoying, but I'd contend much safer.

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[Rally1]

Joining in the misery here. Have a long trip planned for later today and my gen 2 max-pack R1S will pull down 6.9kW from a 48A charger that has no problem delivering 11.5kW. The R1S pulls full power fine normally when I charge to its usual 70% limit, but I boosted it to 100% this morning due to the long drive and it seems to have slowed down right around 80% charge. Pretty frustrating, won’t hit 100% in time, but should have enough charge to reach my destination - just won’t have as much as a buffer.

When I was messing around with it earlier this morning, I could get the car to pull full power if I turned the climate on - so it’s clearly the vehicle and not the EVSE (Gen 3 Tesla HPWC).

The charge rate dropping at 80% might be a different issue. https://www.rivianforums.com/forum/...-at-24f-should-i-be-worried.37845/post-686772

 

[DeafPug]

I replied with an additional input on that other thread with a link to the software release notes and a possible explanation of what’s going on.

https://www.rivianforums.com/forum/...-at-24f-should-i-be-worried.37845/post-687537

Edit: assuming everyone here is trying to charge past 80% and all the way to 100%…

 

[SpittinDubs]

My Rivian has started doing this on a Tesla wall charger with adapter. Charges normal for an hour and then drops the speed. Why didn’t anyone ever post what the fix was for this?

 

[RivAW]

Sometime around the latest vehicle update to 2023.50.01 the charger started acting screwy. It will charge for the first hour at max speed (10.9 kw/h) and at the end of that hour drops to 6.9 kw/hr and stays there, regardless of state of charge. If you unplug and replug it starts the clock over, works for an hour and then drops. We have a different level II charger that chargers at about 9 kw/hr and will charge at that level consistently to the desired max charge rate.

I have reset the breakers for the charger. Performed a hard reset on the vehicle. The problems persists. Rivian chat support sent my problem to their “charging team” two weeks ago and only crickets in response. Anyone else having this problem?

My tesla wall charger (with adapter) has recently been doing the exact same thing.

 

[RivAW]

My Rivian has started doing this on a Tesla wall charger with adapter. Charges normal for an hour and then drops the speed. Why didn’t anyone ever post what the fix was for this?

Same! Which leads me to believe it’s a vehicle/software issue and not an issue with the charger(s) or adapters.

 

[kozak79]

Since the update, my Chargepoint Flex charger has tripped the breaker 3 nights in a row now, first time in 3 years. I'm starting to think there is something wrong with the update.

I'm going to try dropping the charging amps from 40 to 30 tonight and see if the breaker holds.

 

[SpittinDubs]

Since the update, my Chargepoint Flex charger has tripped the breaker 3 nights in a row now, first time in 3 years. I'm starting to think there is something wrong with the update.

I'm going to try dropping the charging amps from 40 to 30 tonight and see if the breaker holds.

If you could report back on the outcome that would be appreciated.

 

[Jonger1150]

Something new was introduced on the last update. Warm plug warnings are now a thing for me too.

 

[Noober]

Something new was introduced on the last update. Warm plug warnings are now a thing for me too.

Same here, new gen2 R1 Dune

 

[kozak79]

If you could report back on the outcome that would be appreciated.

After setting the charging speed in the truck from 40a to 30a, got a full charge overnight. Didn't trip the breaker.

I'm trading in my Gen1 2022 R1T for a Gen2 2025 on Tuesday. Will see if the new truck trips the breaker or if I need to dig deeper into the issue.

 

[trajik210]

Hopping on to say I'm seeing this behavior as well. I've been using a Grizzl-e Classic charger for almost a year with zero issues. Went to my 2022 R1T this afternoon to setup a new PaaK and noticed the charging error/information.

Gen1 R1T with 4xxx VIN. 12v's replaced about a month and a half ago.

 

[Jonger1150]

Just had an overheat with 38 Amps and it's 70F outside and shaded.

WTF happened to the last update?

 

[mkc1378]

After setting the charging speed in the truck from 40a to 30a, got a full charge overnight. Didn't trip the breaker.

I'm trading in my Gen1 2022 R1T for a Gen2 2025 on Tuesday. Will see if the new truck trips the breaker or if I need to dig deeper into the issue.

If your breaker continues to trip, I would open up the breaker panel and check the wiring.
I had the same issue, and when I opened up the panel, the wire was loose. It was causing an arc, tripping the breaker.

 

[HaveBlue]

Could be they dialed in a voltage sag measurement that senses a poor connection and aborts. My Autel unit is super sensitive to issues.

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