HV Battery Health & RangeDiscussionCommunity Starter

Anyone else: How are you estimating real battery degradation?

MileageDaily27Community StarterApr 16, 20262023 Rivian R1T Quad-MotorNYC / Long Island
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.
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MileageGuy58Community StarterCommunity StarterApr 17, 2026permalink
Don't clear the alert just to make the screen pretty. Leave the alerts on the 2023 Rivian R1T so service can see what you saw. I'd do that before spending real money. Any freeze-frame data saved? Cold start is when I can actually reproduce it.
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