A computer feature or peripheral that has completely stopped should be separated into driver, permission and physical-connection layers before assuming component failure. For MacBook battery condition, first check Battery Health, cycle count and behavior on the Apple adapter under light load.
What this covers
- MacBook battery condition with this exact failure state
- Diagnosis across normal aging versus charger, workload, temperature and battery hardware
What it does not cover
Try in this order
0 of 4 completedCapture the exact failure state
ReversibleCheck Device Manager or System Information for whether the hardware is even detected, and whether an error code is shown. Expected behavior: report charge and power the Mac without swelling, sudden shutdown or abnormal heat.
Isolate the component boundary
ReversibleCheck Battery Health, cycle count and behavior on the Apple adapter under light load. Test the peripheral on a different port or user account, and test a different peripheral on the same port. Boundary to separate: normal aging versus charger, workload, temperature and battery hardware.
Correct only the proven cause
ReversibleCorrect charge settings or arrange Apple-authorized battery service. Reinstall or roll back the driver, or grant the missing app permission.
Verify and stop safely
ReversibleConfirm the feature works after a full restart in at least two different applications. Shut down for swelling, raised trackpad, odor, heat or damaged enclosure.
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