It was reported that this cardiac resynchronization therapy defibrillator (crt-d) recorded a code 1003 indicative of battery voltage too low for the projected remaining capacity.Also, this device exhibited beeping tones.Data analysis showed that the device hardware is not detecting the loss of battery energy.Because of this, the battery status indicators are not reflecting the depletion condition and are inaccurate; and should no longer be relied upon to determine the depletion status of the device.Furthermore, a device replacement was recommended or reassessed battery status within 90 days.To date, this device remains in service.No adverse patient effects were reported.
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