DJI say the mavic is not for use in cold conditions. Very surprised as I thought that those into snow sports would be keen to own a Mavic. I see there are a few discussions about the PH4 in the snow and to keep the batteries warm. Do the PH4 have a lower operating temp than 0 degrees c? I am spending Christmas in Canmore Alberta and wanted to use it there. -10 and a good day. Any hints?