The customer reported that the freedom onboard battery did not hold a charge.The customer also reported that the freedom onboard battery charged when inserted into the freedom battery charger, but when the freedom onboard battery was removed, it did not hold the charge.There was no reported adverse pt impact.This alleged failure mode poses a low risk to the pt because it would not prevent the freedom driver from performing its life-sustaining functions.The freedom driver has a redundant power source of external power.In addition, pts are provided with several onboard batteries.The onboard battery will be returned to syncardia for eval.The results of the investigation will be provided in a supplemental mdr.
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The customer reported that the freedom onboard battery did not hold a charge.The customer also reported that the freedom onboard battery charged when inserted into the freedom battery charger, but when the freedom onboard battery was removed, it did not hold the charge.There was no reported adverse patient impact.Freedom onboard battery s/n (b)(4) was returned to syncardia for evaluation.The onboard battery successfully passed physical inspection requirements with no observed abnormalities.Review of the onboard battery's smbus (system management bus) data revealed a permanent fault flag with max lifetime battery cell and max lifetime pack voltages greater than the first level safety thresholds.These voltages that the battery experienced are likely the cause for its permanent fault state, resulting in the inability of the battery to charge.This failure mode poses a low risk to the patient because the battery was in the battery charger and not in use in the patient's freedom driver at the time of the customer-reported issue.Additionally, the freedom driver has multiple redundant power sources (e.G., external power via ac power supply and car charger) and patients are provided with several freedom onboard batteries.Because the battery was inoperable, freedom onboard battery s/n (b)(4) was taken out of service.This issue will continue to be monitored and trended as part of the customer experience process.Syncardia has completed its evaluation of this complaint and is closing this file.
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