The investigation of the returned device has been completed.Our records indicate that the device was manufactured in may 2008 and the battery handset was manufactured in august 2014.The expected end of life for the battery handset is 300 charge/discharge cycles per the user manual.The unit was inspected and it was determined that the battery experienced a thermal runway which led to a battery failure in the device.This battery handset enclosure was not compromised.No injuries or damage to the surrounding were reported.The investigation found evidence of heavily applied dental office cleaners and fluid ingress into the interior of the handset which resulted in a thermal event.The nomad pro operator manual (mp-0074 rev e) provides the following warning: "do not spray disinfectant or cleaners directly on the nomad pro, handsets, charging cradle or ac power supply.The connecting areas are open to ingress and damage to your device may result." this completes our investigation.
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