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If the OP's machine shuts down immediately as soon as they disconnect the battery, doesn't that suggest that the battery is already at 0%?terdon– terdon ♦2026-01-31 17:00:08 +00:00Commented 14 hours ago
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@terdon Yes, if the laptop shuts down immediately as soon as the power adapter is unplugged, the battery is effectively not supplying any power. This means the displayed 60% is very likely incorrect. The most likely cause is therefore that the battery is defective or internally disabled, e.g. due to a protection circuit, cell damage, etc. I would say with 99% certainty that this is a battery failure, but strange is since this behavior appeared after the upgrade to Linux Mint 22.3ReflectYourCharacter– ReflectYourCharacter2026-01-31 17:39:34 +00:00Commented 14 hours ago
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2The suggested calibration cycle plus a BIOS reset and a test with a live OS is exactly the right approach to clearly distinguish between a software and a hardware issue. So step 1 can effectively be skipped.ReflectYourCharacter– ReflectYourCharacter2026-01-31 17:39:42 +00:00Commented 14 hours ago
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