Device evaluation of battery sn (b)(4) been completed. the reported problem (battery pack may have thermal damage) has been confirmed. as received, the battery was unable to power on a monitor or charge.The battery pca and cells were contaminated. the root cause for the contamination was ingress of an unknown liquid. lifevest patient training materials have been updated as a reminder not to expose the lifevest electronic components to liquids. there was no death or adverse event associated with the battery malfunction.
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