This certainly rings true for me. I've got a 4S. I must say, I've never experienced the problem before upgrading to iOS 7, but I don't think it started happenin

This certainly rings true for me. I've got a 4S. I must say, I've never experienced the problem before upgrading to iOS 7, but I don't think it started happening immediately after upgrading, either... Could cold weather have something to do with it? It started happening to me once temperatures started hitting sub-zero. I know that temperatures must affect the batter in strange ways.