D5: operator of device is unknown.E4: customer reported to fda is unknown.This remediation mdr was generated under protocol (b)(4), as a result of warning letter (b)(4).A product sample was received for evaluation.Visual and functional testing were performed.The battery contact was bent.The complaint was confirmed.Error history log review found high pressure, upstream occlusion, air in line detected messages in the event history log.Customer problem was duplicated "battery terminal damaged" issue during the investigation.The reported issue was found to be the battery contact was damaged.The root cause of the reported issue could not be determined.The battery contact was replaced to resolve the reported issue.
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