2025 Hyundai Tucson — battery dies after the car sits for a weekend — trying to narrow this down

Charge curves lie if you don't match starting SOC and temp. Match starting SOC and battery temp if you're comparing 2025 Hyundai Tucson charge sessions. Then you'll know the next fork. Have you gotten a second quote in writing? Happens in gear, not in park, for what that's worth.

I'd treat 12V warnings as a no-ignore. On the 2025 Hyundai Tucson, I'd get the 12V/DC-DC side checked even if the traction pack looks fine. That's where I'd start. On “battery dies after the car sits for,” that was the fork that mattered for me. This is from a 2025 Hyundai Tucson in Detroit with 31,500 miles. Was this after sitting overnight? I'm keeping receipts and dates in one folder.

Low-voltage gremlins will strand you even with a full pack. Try a second charger before blaming the 2025 Hyundai Tucson — site sharing and pack temp change the curve a lot. That's where I'd start. A shop burned me once by skipping that step. Worth doing even if the car feels fine right now. If the story changes I'll post the new data.

Don't clear the alert just to make the screen pretty. Leave the alerts on the 2025 Hyundai Tucson so service can see what you saw. That's where I'd start. Any freeze-frame data saved? I'd sleep better after that step, even if it finds nothing. Might be overthinking it, but I'd rather overthink than overspend.

I went back under the 2025 Hyundai Tucson and it only happens after a heat soak, not on a cold start. If this is nothing, great. I want that in data.

I'd treat 12V warnings as a no-ignore. On the 2025 Hyundai Tucson, I'd get the 12V/DC-DC side checked even if the traction pack looks fine. That's where I'd start. On “battery dies after the car sits for,” that was the fork that mattered for me. Was this after sitting overnight? Climate here is different, so treat that as a local data point. Might be overthinking it, but I'd rather overthink than overspend.

Low-voltage gremlins will strand you even with a full pack. Try a second charger before blaming the 2025 Hyundai Tucson — site sharing and pack temp change the curve a lot. That's where I'd start. A shop burned me once by skipping that step. Parking it somewhere I can hear it better next time.

Don't clear the alert just to make the screen pretty. Leave the alerts on the 2025 Hyundai Tucson so service can see what you saw. Then you'll know the next fork. Was this after sitting overnight? If that fails I'll eat the diagnostic fee.