A few nights ago, I shot from a wonder B2 zone ... but the temperature got to -10F. The rig lasted a little less than two hours before quitting. At first, I thought my batteries quit, but each had plenty of capacity remaining. So, it was either the ZWO WI-FI extender, or the AAP itself. At this point, I am assuming it was the AAP ... and if so, will ask if anyone is utilizing a method of keeping the AAP warm enough to operate in extremely cold temperatures? As I look at the AAP in my hand, it looks like a custom-configured dew strap could work .... Your thoughts are welcome, thanks.