HV Battery Health & RangeDIYCommunity Starter

Anyone else: How are you estimating real battery degradation?

EuroNomad49Community StarterJul 27, 20262025 Lucid Air PureSan Diego
Dash range changes with temperature and driving, so I'm looking for a better way to judge battery health. What data do you trust—usable kWh, charging energy, service-mode values, repeated range tests? I'd rather test this logically than start replacing parts.
permalink

4 replies

NewCarMomCommunity StarterCommunity StarterJul 28, 2026permalink
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. Then you'll know the next fork. On “how are you estimating real battery degradation,” that was the fork that mattered for me. That's the whole play. This is the filter I use when the thread starts repeating itself. Video is ugly but it shows the hesitation.
CruiseGarage16Community StarterCommunity StarterJul 28, 2026permalink
Low-voltage gremlins will strand you even with a full pack. Try a second charger before blaming the 2025 Lucid Air — site sharing and pack temp change the curve a lot. I'd do that before spending real money. Happy to compare notes if your setup is different. I'd rather pay for diagnosis than a second guess-repair.
TorqueTravelerCommunity StarterCommunity StarterJul 28, 2026permalink
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. That's the whole play. If it repeats twice more I'll book time.
EuroNomad49Community StarterCommunity StarterJul 28, 2026permalink
It did how are you estimating real battery degradation twice this week, both times after sitting. No change in mileage feel. No warning lights, which is why I'm documenting it.
Sign in to reply

Similar discussions