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Connected Home Charger - Speed Decreasing on 100A Circuit

240 said:
Why are we getting throttled?
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Unless the charger is sending a new pilot signal with a new amperage, then the throttling is due to the software in the car.
 
I'm having trouble keeping track of this issue. Have we concluded that the throttling is fixed by the v3 (J1772) version?
 
Alex said:
Unless the charger is sending a new pilot signal with a new amperage, then the throttling is due to the software in the car.
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The car’s setting is set to 80amps…
 
L-Dude said:
I'm having trouble keeping track of this issue. Have we concluded that the throttling is fixed by the v3 (J1772) version?
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I ordered the Lucid charger at the end of November and I’m getting throttled after 15 minutes.
 
L-Dude said:
I'm having trouble keeping track of this issue. Have we concluded that the throttling is fixed by the v3 (J1772) version?
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And there are still a ton of us that don’t have Lucid chargers, where everything was working fine prior to May of this year and once that update around that time came through people started noticing throttling not just on the Lucid branded charger, but other chargers like my Tesla GEN three wall charger.
 
Miami_Lucid_Man said:
And there are still a ton of us that don’t have Lucid chargers, where everything was working fine prior to May of this year and once that update around that time came through people started noticing throttling not just on the Lucid branded charger, but other chargers like my Tesla GEN three wall charger.
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Yes, so this indicates a problem with the cars, not the charger.
 
240 said:
The car’s setting is set to 80amps…
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Yes, but the car can request a different amperage as needed: For example, when approaching 100% it cannot maintain 19kW and ramps down amperage. But it should be able to support the full 19kW to at least 80%. At least that's what it did for my cars previously.
 
240 said:
I ordered the Lucid charger at the end of November and I’m getting throttled after 15 minutes.
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My LCHCS is a completely different part number than yours (that makes sense since you have a NACS connector). Mine is version -03 of the J1772 version, which supposedly solves the throttling problem. I could be wrong though--usually am. Just ask the wife.
 
Alex said:
Yes, but the car can request a different amperage as needed: For example, when approaching 100% it cannot maintain 19kW and ramps down amperage. But it should be able to support the full 19kW to at least 80%. At least that's what it did for my cars previously.
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I was charging my car last night at 12am. The car started at 42%. It started charging at 19kw for 15 minutes. At 12:15am the charging dropped to 11kw and maintained this until it hit 80%.
 
Alex said:
Yes, but the car can request a different amperage as needed: For example, when approaching 100% it cannot maintain 19kW and ramps down amperage. But it should be able to support the full 19kW to at least 80%. At least that's what it did for my cars previously.
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I want to clarify that the car doesn’t actually request different amperages from the EVSE (or charger). The EVSE advertises the maximum amperage, and the car can draw up to that limit. When I mentioned “requests,” I meant that the car determines its own needs.
 
L-Dude said:
My LCHCS is a completely different part number than yours (that makes sense since you have a NACS connector). Mine is version -03 of the J1772 version, which supposedly solves the throttling problem. I could be wrong though--usually am. Just ask the wife.
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I see…I guess I’ll have to continue pushing this issue up the Lucid chain to find a solution. Either it’s the charger or the car, but I’ll need to start crossing possibilities off the list.
 
This is unquestionably a software issue. They may have fixed it at least in part through a revision to the LUCID home charger but that’s only specific to that charger. The key is people were not getting throttling on whatever they were using to charge at home…and then in May they were.
 
Miami_Lucid_Man said:
This is unquestionably a software issue. They may have fixed it at least in part through a revision to the LUCID home charger but that’s only specific to that charger. The key is people were not getting throttling on whatever they were using to charge at home…and then in May they were.
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I just installed the lucid home charger NACS version and I’m still getting throttled
 
240 said:
I just installed the lucid home charger NACS version and I’m still getting throttled
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I just installed a Grizzl E 80a Ultimate and it's throttling as well. It will run 80a/19kw for about 10-40 minutes then throttle down to 48a/11kw for remainder of charging session. I lowered the car to 64a/15kw and it did the same thing lowering to 38a/9kw. It's has to be the battery management system software throttling this 60% each time. Anyone else have this issue?
 
GravitMe said:
I just installed a Grizzl E 80a Ultimate and it's throttling as well. It will run 80a/19kw for about 10-40 minutes then throttle down to 48a/11kw for remainder of charging session. I lowered the car to 64a/15kw and it did the same thing lowering to 38a/9kw. It's has to be the battery management system software throttling this 60% each time. Anyone else have this issue?
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Sounds like a variation of the same overarching situation reported in this thread. Nothing much to do but wait for hopefully an update addressing it.
 
Nothing has changed with any of the software updates. There's still a whole bunch of people with AC issues.
 
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Charging rate is relatively constant on the bottom, 17-18kW over a 4hr charge. This was after replacing the LHCS with a new revision.
 
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