Might be irrelevant, but having myself put one of these mob. phone under a hammer (I know.. what for??? long story following an impressive phone bill by my 16 yo kid), I was surprised by the heat produced by the dammaged lit. batt.!!
Therefore, packaging might be an issue, one has to consider (summer heat on the apron in Dubai ... may be??), but also very adequate handling between factory all the way to the aircraft??? We have all seen some of the loaders operating (inluding with pax suitcases!!)