Battery Drain 1 story

The Battery Drain tag separates a concrete failure mode from broader Troubleshooting & Failure Modes troubleshooting. The diagnostic focus is unexpectedly rapid energy loss, with emphasis on screen and radio use, background activity, wakeups, temperature, battery health, charging history, and the difference between a software workload and an aging cell. Troubleshooting stays specific to this failure mode, using measurements, logs, compatibility evidence, recovery options, or component checks only when they help confirm the cause.