Here in Texas we are experiencing super cold temps. Consequently, I felt the lowered battery performance in my I1 v1 in even our typical 40F cold weather would be even less when flying this week. However, as I lack DJI battery warmers I reached into my bag for some leftover Peel & Stick Body Warmers from this hunting season. As it turns out, the body warmers fit perfectly onto my Inspire 1's battery and raised my battery temps to 109F, while flying, in 28F weather. Sticking a body warmers on either side of my Inspire 1's battery and another two on the spare gave me 15 min of flight time per each TB47 at 28F with no warnings. In comparison, in 50F temps during my most recent flights, my batteries reached only 56F and in recent colder temperatures I received multiple warnings. Pics: