2023 Rivian R1T Quad-Motor — anyone else: Battery keeps dying after two or three days parked

Update: the cheap test changed the symptom, so I'm not throwing parts yet. Only after sitting overnight so far.

This is usually cheaper to test than to guess. Write temp, speed, and in-gear vs coast when the 2023 Rivian R1T does it — then decide on parts. If the cheap test changes it, stop and reassess. Run the total, not the monthly, before you commit. Parking it somewhere I can hear it better next time.

Log the conditions before you spend. If a shop can't duplicate it on the 2023 Rivian R1T, bring a video plus freeze-frame data, not just a story. Save the big job until that test fails. On “motor — anyone else: battery keeps dying,” that was the fork that mattered for me. The universe charges extra for guessing. If your situation is the opposite, ignore me. Not interested in a five-hour wait for a shrug.

Start with the test that can prove you wrong. Two 2023 Rivian R1Ts can feel identical and have different causes, so measure before you copy someone else's repair. That's the branch I'd chase this week. This is from a 2023 Rivian R1T in Charlotte. Have you gotten a second quote in writing? I'll poke at it this weekend.