The reported events of longevity anomalies and premature discharge of battery were not confirmed.Notification of no pacing output, and interrogation issues were confirmed.The device was received with unstable telemetry communication and no output.Analysis of the device image indicated the device was operated in high output mode, and an increase in pacing demands.With higher pacing outputs, battery¿s capacity is significantly reduced, and its voltage level is sensitive to variations in usage such as rate responsive and prolong telemetry interrogation.These conditions can result in fluctuation of battery voltage level measurements, which affects the longevity estimates.Electrical and mechanical tests performed including output verification did not identify any functional issues.Longevity assessment found the device was operating at end-of-service level, consistent with normal battery depletion.
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