Connected Home Charger - Speed Decreasing on 100A Circuit

[dcr33313]

1) Fort Lauderdale, so 30 minutes from Miami
2) Marginally hotter, but it’s always hot
3) Lucid home charger at 100/80A
4) Goes from 18kw to 9kw, I’d say halfway through a charge, but I’ve not monitored it closely enough to get an exact time.
5) The cable always gets warm when I charge, but that has never affected the speed. My condo Blink charger is at 11kw and it gets just as warm.

I’ll add that it always takes at least a minute for my Touring to start charging when connected to the LCHCS, but the iX in my family starts charging in 2 seconds. My car charges in 2-4 seconds when using my condo’s Blink charger after I activate the session.

 

[Sandvinsd]

I have noticed the same thing recently. When charging overnight, it has alway run at 18kW or so. As of late, it will run at 18kW and then dip to 7, back up to 18, a few times during the night.

 

[Sandvinsd]

Some photos of the electric draw during charging. Lucid home charger for 2-1/2 years. Only recently is doing this. Has to be some update. Good to know others are experiencing the same thing.

 

[bikeriderbryan]

Some photos of the electric draw during charging. Lucid home charger for 2-1/2 years. Only recently is doing this. Has to be some update. Good to know others are experiencing the same thing.

What are you using to monitor your draw?

 

[Rogue]

If folks are interested, we experienced this issue in Alabama with our first GT.

There were essentially a few things happening:
- Cable gets hot and used to shut off (may only derate nowadays).
- Garage gets hot.
- Car fans kick on to try to cool to no avail.
- Ultimately, the charger had an issue where it melted half the socket.

The meditations were keeping the garage open to let less hot air circulate from outside. This also meant that if the car fans kicked in the garage wouldn't spiral in heat until everything just quit. A commercial grade plug had to be installed, and the charger eventually failed completely 6+ months later.

A new plug ultimately fixed the issue + a new charger + open garage + updates that kept the car from cooking itself with the fans. Otherwise, there is not much else you can do at it starts to heat up this summer.

 

[borski]

If folks are interested, we experienced this issue in Alabama with our first GT.

There were essentially a few things happening:
- Cable gets hot and used to shut off (may only derate nowadays).
- Garage gets hot.
- Car fans kick on to try to cool to no avail.
- Ultimately, the charger had an issue where it melted half the socket.

The meditations were keeping the garage open to let less hot air circulate from outside. This also meant that if the car fans kicked in the garage wouldn't spiral in heat until everything just quit. A commercial grade plug had to be installed, and the charger eventually failed completely 6+ months later.

A new plug ultimately fixed the issue + a new charger + open garage + updates that kept the car from cooking itself with the fans. Otherwise, there is not much else you can do at it starts to heat up this summer.

That’s a different (valid!) issue than what’s happening here. Yes, if you use a residential “dryer” outlet for your 14-50, that is precisely what will happen. You need either a commercial outlet, as you discovered, or any of the new EV-compatible (and marked as such) residential outlets.

But that’s only if you’re using the 14-50 cable/adapter.

People on this thread are talking about hardwired EVSEs. There is no outlet to change.

 

[traumaflo]

Same issue - 100Amp Lucid wall charger - used w/o problems since June 2023 - always solid 18kW, regardless of season, since last update decline to 8 or 9kW.
Time from plugging in till start of charging process has also increased from maybe 30 sec to now sometimes 3-4 minutes.

1) Mid Atlantic - Eastern Shore of Maryland.
2) Very warm and chilly, no difference.
3) Lucid wall charger, bought in 2023, professionally installed - no prior issues.
4) Variable; 18kW --> 9kW
5) Cable has always been hot at end of charge process and still is

 

[Sandvinsd]

What are you using to monitor your draw?

Tesla Powerwall.