It was reported that the patient's battery indicated 18-25% life remaining during an interrogation.It was reported that approximately 3 months later the patient's battery life indicator showed 50-75% remaining.A review of the device history records for the generator was performed and showed that no unresolved non-conformances were found and that the device met all functional specifications prior to distribution.The internal data of the generator from the two interrogation dates mentioned was reviewed.The percent battery remaining, based on the battery voltage when the generator showed 18-25% battery life remaining indicated that there was approximately 24% battery remaining.The percent battery remaining, based on the battery voltage, from 3 months later indicated approximately 60% battery life remaining.No further relevant information has been received to date.
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