I've long wanted a phone case that worked as a battery pack. Probably very iffy, though, even with induction charging. I discovered last year that holding my An

I've long wanted a phone case that worked as a battery pack. Probably very iffy, though, even with induction charging. I discovered last year that holding my Anker and phone together in my hand destroyed GPS. Better they just make it part of the phone design. One big question is how it effects heat/cooling, though.