A customer field service engineer (fse) tested the equipment, and the device has been working with new batteries provided by the customer, and the batteries have been working for ten hours more or less in demo mode.When the batteries do get low, the monitor does provide an inop alarm of "low battery".The fse heard the beep sound when the device is in low battery; there were no sounds when battery is charging or with more than 20 minutes of battery remaining.The fse doesn't believe the batteries that were being used during the event are available for testing.The fse does not believe there is a problem with the device.The device was tested by the fse, and returned to service.No subsequent calls have been logged for this device/issue.No malfunction of the device was able to be found.No further investigation is warranted at this time.
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