Upon receipt, the device was interrogated with a programmer and the device image and print outs were obtained.Visual inspection revealed no anomalies besides minor scratches on the can.Interrogation of the device revealed the device was at end of service (eos) and multiple alerts for battery depletion were noted on the printouts including an alert for a charge time limit reached due to low battery voltage.A longevity calculation was performed and the device was found to be not within the estimated longevity and the time period between elective replacement indicator (eri) and eos was shorter than expected.Bench testing including impedance, sensing, and pacing output measurements revealed no anomalies.The device was cut open and the battery was sent to the manufacturer for further analysis, where no anomalies were found.The reported event of premature depletion was confirmed, however, the root cause could not be conclusively determined.
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