The battery handset was returned and is undergoing investigation.A follow-up report will be submitted upon completion of the investigation.Upon receipt of initial complaint, it was originally determined not to be reportable.However, upon further inspection, we have determined to report this event.Aribex initiated a recall, reference recall z2716/17-2016.
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There was a blackening on the top of the upper battery pack and its printed circuit board (pcb).Only cell 4 appears to have been involved in the thermal runaway, likely by supplying energy into a fault in the board.Additionally there was a slight melting of the handset plastic enclosure.Upon visual inspection it appears that a thermal event occurred.It is not possible to determine the exact sequence of events that led to the thermal event.However, there is evidence that a short occured in the upper battery pack between the cells and pcb.This concludes our investigation.A recall is ongoing, reference z-2716/2717-2016.
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