Connected Home Charger - Speed Decreasing on 100A Circuit

Basically Miami garaged vehicle on V3 Tesla Wall Charger that I used successfully at 48 amps on my two prior model 3 performances without issue. Only difference here is the lectron adaptor at the end of the charger.

Everything worked normal for the first two months I had the Pure beginning in March. Then sometime in May around the time of the update I THINK just before 2.7.0 it started this throttling behavior. There are several others in this thread who’ve had similar behavior begin around the same time in even cooler ambient temps then where I am.

That’s it in a nutshell.
I have pretty much the same set up. I had no issues for about 1.5 years. Then it seem like there was a software update and then I started to get the throttling. I'm surprised more people aren't speaking up on this.
 
I have pretty much the same set up. I had no issues for about 1.5 years. Then it seem like there was a software update and then I started to get the throttling. I'm surprised more people aren't speaking up on this.
Yeah, to me the key point through all of this is that in your case, and in mine and a few others that have popped up in this thread it appears that no conditions were changed before the problem and after the problem. That’s why I think we initially thought maybe it was the warming temperatures around May But there have been plenty of posts in this thread that make me doubt that especially post from people in Colorado and other places where although warm it’s not even anywhere close to where I am in South Florida. The common thread seems to be around Maytime, which leads me to believe it was a software update. Now, maybe it’s a safety thing that was intentionally pushed to the vehicles, but I just wish we knew that one way or another.
 
looking forward to a robustness update to address this. that would be a fitting release note!
 
I had issues from day 1. Charges at 18kw and then 15 - 45 min later, drops to 9kw and stays there. Doesn't matter if it winter or summer. Had customer service via email take pictures of the installation. Nothing wrong. Looks at my car's logs remotely, nothing wrong. Sends me to service center to inspect. Service center shows nothing weird.. but then again, i don't think their service center has 80 amp charger installed. Service even sent another Lucid car to see if it happens with their loaner. Same thing. Service center punts me back to customer service... They had me try to collect logs from charger, but the collect diagnostics button wouldn't get the diags. Finally complained to get me new replacement.... Got it replaced, and now charges 18kw all the way to 80%. Whatever revision or version or newer charger they gave me works. It even has options on menu for V2H for the future which mine did not show.
 
...Finally complained to get me new replacement.. It even has options on menu for V2H for the future which mine did not show.
Interesting! What firmware versions are the new charger running?
 
I had issues from day 1. Charges at 18kw and then 15 - 45 min later, drops to 9kw and stays there. Doesn't matter if it winter or summer. Had customer service via email take pictures of the installation. Nothing wrong. Looks at my car's logs remotely, nothing wrong. Sends me to service center to inspect. Service center shows nothing weird.. but then again, i don't think their service center has 80 amp charger installed. Service even sent another Lucid car to see if it happens with their loaner. Same thing. Service center punts me back to customer service... They had me try to collect logs from charger, but the collect diagnostics button wouldn't get the diags. Finally complained to get me new replacement.... Got it replaced, and now charges 18kw all the way to 80%. Whatever revision or version or newer charger they gave me works. It even has options on menu for V2H for the future which mine did not show.
This is with Lucid’s own home charger?

The complaints in this thread seem to go beyond that charger to Tesla wall chargers as well.
 
This is with Lucid’s own home charger?

The complaints in this thread seem to go beyond that charger to Tesla wall chargers as well.
Correct.. This is with Lucids High Power Home charger. I was too lazy to re-install Tesla's high power wall charger to test it out as the amount of money i paid for Lucid's charger should work. Now it works after 4-5 months between customer service and service center. I'm just glad it's done. :)
 
Interesting! What firmware versions are the new charger running?
I'll look it up later tonight. My old Lucid high power wall charger was able to connect via wifi. But the new one, I cannot connect to my wifi for the life of me. So I have to do a direct connect to the charger via it's own WiFi network.
 
I wonder if the “fixed” this for the Lucid charger and if there’s something coming for everything else.
 
Sorry I completely missed this thread. I complained about this to the Natick folks just a week ago. When charging on L2 (happens on both Lucid Charger (at Lucid service) and EV Connect L2 at my YMCA), car will start at 16 kW and after about 10-15 minutes it will drop to 6 kW. It's pretty consistent although one time I was able to maintain the 16kW for over 30 minutes. I had been charging at my YMCA for the past 6 months and got 16kW steady for 1-2 hours. Lucid did monitor my car when it did the dropped while on their L2 charger and said car was still asking for the higher rate. So at this point they don't think there's an issue AFAIK.
 
Sorry I completely missed this thread. I complained about this to the Natick folks just a week ago. When charging on L2 (happens on both Lucid Charger (at Lucid service) and EV Connect L2 at my YMCA), car will start at 16 kW and after about 10-15 minutes it will drop to 6 kW. It's pretty consistent although one time I was able to maintain the 16kW for over 30 minutes. I had been charging at my YMCA for the past 6 months and got 16kW steady for 1-2 hours. Lucid did monitor my car when it did the dropped while on their L2 charger and said car was still asking for the higher rate. So at this point they don't think there's an issue AFAIK.
That’s pretty unbelievable that they would say that when it demonstrably is doing it on their own charger and third-party chargers. Something is definitely up they just don’t yet realize it or haven’t acknowledged it yet. I’m still sticking to my belief that it was 2.6.8 update that started causing this back around May 2025.
 
Sorry I completely missed this thread. I complained about this to the Natick folks just a week ago. When charging on L2 (happens on both Lucid Charger (at Lucid service) and EV Connect L2 at my YMCA), car will start at 16 kW and after about 10-15 minutes it will drop to 6 kW. It's pretty consistent although one time I was able to maintain the 16kW for over 30 minutes. I had been charging at my YMCA for the past 6 months and got 16kW steady for 1-2 hours. Lucid did monitor my car when it did the dropped while on their L2 charger and said car was still asking for the higher rate. So at this point they don't think there's an issue AFAIK.
thats unbelievable that they say there is no issue. would you mind DM's me who you spoke with? I'm about to make a service appointment for rear parcel shelf (yet again, after its been replaced) and steering wheel issues and i'll bring this up with them
 
thats unbelievable that they say there is no issue. would you mind DM's me who you spoke with? I'm about to make a service appointment for rear parcel shelf (yet again, after its been replaced) and steering wheel issues and i'll bring this up with them
Let us know how it goes. And to correct myself from above, the version number I suspect was 2.6.16 as reflected in the OP on or about May 18, 2025.
 
Just to be clear: this is happening regardless of EVSE? It sounds like it’s happening to both Lucid’s LCHCS and Tesla wall chargers (I’m assuming because @SBD1500 mentioned an adapter)

Can folks whom this is happening to just sound off with:
1) location?
2) has the weather gotten hot recently? (May be unrelated, but seems worth tracking, maybe)
3) which EVSE do you have?
4) how long before it slows down, and what speed does it slow down to?
5) is the cable/plug hot?

Just trying to help narrow it down and find a repeatable / reproducible test case.
1. Phoenix - '25 Touring
2. Issue started with 110+. But still happening in 90s - Car in garage
3. Tesla Gen 3 Wall Charger. Never an issue with my previous Model S - Full 48A
4. Mine doesn't slow down. it just "Charging Stopped" after about 20 minutes - My Service Advisor noted others HAVE called in with similar issue
5. Warm - Could hold for extended periods no issue. I have a Lectron 80A adapter on a 80A circuit. I've limited charging from 48A to 40A using new feature in latest release. This helped for a while. Wall unit would still often show flashing red meaning high heat. Even now with lower temps, it still stops charging after about 20 minutes at 40A rate.
 
1. Phoenix - '25 Touring
2. Issue started with 110+. But still happening in 90s - Car in garage
3. Tesla Gen 3 Wall Charger. Never an issue with my previous Model S - Full 48A
4. Mine doesn't slow down. it just "Charging Stopped" after about 20 minutes - My Service Advisor noted others HAVE called in with similar issue
5. Warm - Could hold for extended periods no issue. I have a Lectron 80A adapter on a 80A circuit. I've limited charging from 48A to 40A using new feature in latest release. This helped for a while. Wall unit would still often show flashing red meaning high heat. Even now with lower temps, it still stops charging after about 20 minutes at 40A rate.
Is the box itself outside, in direct sunlight?
 
Is the box itself outside, in direct sunlight?
No, it is inside my garage. But it’s pretty toasty in there. Bought car in March so never experienced this issue until deep into July when temps were well north of 100, and at least that in the garage. Even though I charge at night after 7:00 pm, it’s still warm and vehicle shuts off charging after about 20 min.

While I thought I didn’t have the issue others describe here of a drop off in power output, data from my Tesla Gen 3 wall charger shows that I am routinely dropping 50% power from about 10 kW to about 5 kW. I am on version 2.8.0. Hard to say if this version with the new charge limit setting caused the issue or if it’s more heat related. I suspect software considering others here have had their vehicles longer and now also experiencing this issue.

IMG_6549.webp
 
O, it is inside my garage. But it’s pretty toasty in there. Bought car in March so never experienced this issue until deep into July when temps were well. Roth of 100 and at least that in the garage. Even though I charge at night after 7:00 pm, it’s still warm and vehicle shuts off charging after about 20 min.

While I thought I didn’t have the issue others describe here of a drop off in power output, data from m6 Gen 3 wall charger shows that I am routinely dropping 50% power from about 10 kW to about 5 kW.

View attachment 32231
Interesting. Yeah I would have mobile service check it out.

Could be thermal throttling but if it’s not hot or burning to the touch I don’t see that happening. Weird, I’ll have to ask some friends about their garages.
 
Interesting. Yeah I would have mobile service check it out.

Could be thermal throttling but if it’s not hot or burning to the touch I don’t see that happening. Weird, I’ll have to ask some friends about their garages.
The temp in my car is 101 right now. And it charged at about 10kW for 20 min. Or so, then “charging stopped” I can’t even restart it from the app until a bit of a delay. I’d have to go out to the ca4 to restart charging.
 
I'm getting 5kw after about 30 mins at 11kw charging with Tesla wall charger with adapter. I swear this slow down starting happening after software updates. The Tesla charges at full speed no slow downs.
Seeing exactly the same with the Tesla Gen 3 Wall charger. And I get “charging stopped” push messages on the app after about 20-30 min of charging.
 
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