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Manufacturer's investigation conclusion: the reported event of the power module producing a red battery alarm was confirmed by review of the customer-submitted video.The records for the heartmate sealed lead acid battery (serial number: (b)(6) were reviewed, and it was found that the battery had surpassed its recommended top charge date at the time of the reported event.The power module backup batteries are top charged every 90 days to ensure the battery state of charge stays above 70% charge.This is to prevent the 12v batteries from remaining in an unused state for an extended period of time, which may result in an overly discharged battery and compromised battery function.The battery for this event was last top charged by abbott on 13apr2023 and was shipped to the korean distribution center on 19apr2023.The battery¿s next top charge was due on 13jul2023, but the battery was not charged at the korean distribution center due to mfds regulations.The battery was then shipped to the customer's distribution center on 17jun2024.Upon connecting the battery to the power module to check its functionality, the customer reported the observed issue on 21jun2024 (approximately ~344 days after its top charge was due).The root cause of the reported event was determined to be that the battery had entered deep discharge, due to not being shipped to the customer before the charge by date.Battery inspection data was reviewed for the 12v sla backup battery, serial number (b)(6), revealing that the battery passed all inspection testing.The backup battery was packaged alongside power module ppm-27947.The heartmate iii instructions for use instructs users on how to handle red battery alarms that occur on the power module.A red battery alarm with a yellow wrench alarm signifies that the internal backup battery is not functioning properly.Users are instructed to immediately switch to a new power source.The heartmate power module ifu, section 2.0 ¿setting up the power module (pm) prior to use¿ describes how to prepare the power module for use by connecting the internal battery, attaching the power cord, and attaching the patient cable.The heartmate iii instructions for use section 3 - ¿powering the system¿ states that the power module contains an internal backup battery that provides approximately 30 minutes of backup power to the system during a power emergency.It instructs to keep the power module plugged into ac power at all times to make sure that the power module backup battery is charged and ready for use in case of power interruption.If the power module is without ac power for approximately 18 hours or more, the power module backup battery may be damaged.Additionally, it is stated that if the power module backup battery is not installed or connected when the power module is plugged in, the power module alarms, indicating that it cannot provide backup power in the event of a power interruption.The patient handbook cautions the users to call their hospital contacts if they think, for any reason, any portion of their equipment is not functioning as usual, is broken, or they are uncomfortable with the operation of the equipment.No further information was provided.The manufacturer is closing the file on this event.
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