A visual inspection of the device revealed that there was evidence of corrosion on the brass casing of the +ve battery terminal pogo pin and the usb contact collars.This would indicate the device had been subject to storage outside of the indicated conditions.The history log for this device showed that the pad-pak was first installed on the (b)(6) 2015 and performed to specification up to the (b)(6) 2018.The history log from the device shows the device failed self-tests due to a low battery between the (b)(6) 2018 and the (b)(6) 2018.The user would have been alerted with a ¿warning low battery, device service required¿ prompt and a flashing red status led and a failure chirp, as per the reported fault.The returned pad-pak was dissembled to investigate with five cells measuring approximately 3v and one cell measuring 0v.This would account for the low battery fails at the end of the history log would confirm the reported fault.The corrosion observed on the screws, usb contact collars and the brass casing of the +ve pogo pin would indicate the returned sam pad device had been subject to storage outside the indicated conditions.No evidence of storage outside the indicated conditions could be seen on the pad-pak but due to corrosion observed on the device it is assumed that the pad-pak had been stored along with the device and therefore resulted in the failed cell in the returned pad-pak.It is the policy of heartsine not to refurbish devices which have been returned from the field, after investigation, therefore this device shall be scrapped and replaced with another device of the same model.
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