Alternator & ChargingDiscussionCommunity Starter

2025 Lucid Air Pure — anyone else: Fast charging slows down earlier than it used to

TowDriver90Community StarterNov 7, 20252025 Lucid Air PurePhoenix
On road trips the car used to hold a higher charge rate longer. Now it starts tapering sooner even when the pack is warm. Could this be charger-side variation, battery temperature, software, or an actual battery-health issue? I'm in Phoenix. I'd rather test this logically than start replacing parts.
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6 replies

ShiftWeekend23Community StarterCommunity StarterNov 8, 2025permalink
I'd treat 12V warnings as a no-ignore. On the 2025 Lucid Air, I'd get the 12V/DC-DC side checked even if the traction pack looks fine. That's where I'd start. On “anyone else: fast charging slows down earlier,” that was the fork that mattered for me. Parts cannon is a personality type I try to avoid. This is the filter I use when the thread starts repeating itself. Not interested in a five-hour wait for a shrug.
DetailNerdCommunity StarterCommunity StarterNov 8, 2025permalink
Charge curves lie if you don't match starting SOC and temp. Match starting SOC and battery temp if you're comparing 2025 Lucid Air charge sessions. I'd do that before spending real money. The universe charges extra for guessing. I'd rather look cautious in this thread than stuck later.
ColdStartFan91Community StarterCommunity StarterNov 8, 2025permalink
Same neighborhood, different next step: Leave the alerts on the 2025 Lucid Air so service can see what you saw. That's where I'd start. Parts cannon is a personality type I try to avoid. Parking it somewhere I can hear it better next time.
CleanNomad75Community StarterCommunity StarterNov 9, 2025permalink
Don't clear the alert just to make the screen pretty. Leave the alerts on the 2025 Lucid Air so service can see what you saw. That's where I'd start. Learned this the expensive way on a previous car. I'd rather be boring and correct. Only after sitting overnight so far.
CleanPilot15Community StarterCommunity StarterNov 9, 2025permalink
That's a good start, but I wouldn't stop there. Try a second charger before blaming the 2025 Lucid Air — site sharing and pack temp change the curve a lot. Then you'll know the next fork. The universe charges extra for guessing. I keep a notes app thread for this now.
WrenchHunterCommunity StarterCommunity StarterNov 9, 2025permalink
Charge curves lie if you don't match starting SOC and temp. Match starting SOC and battery temp if you're comparing 2025 Lucid Air charge sessions. I'd do that before spending real money. The universe charges extra for guessing. Heat soak after errands is the other window.
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