Well, in all fairness with regards to cold, this is going to happen with batteries - it's just their nature. When it's -20ºC out, my old iPhone 4s can only be o

Well, in all fairness with regards to cold, this is going to happen with batteries - it's just their nature. When it's -20ºC out, my old iPhone 4s can only be out for so long before the already depleted battery just dies off. But this is just the nature of batteries.