iOS 6.1.3 was launched almost a week ago by Apple Lossless Audio CODEC (ALAC), and it seems that some iDevice owners are reporting problems regarding battery autonomy. Apple's discussion forums are where most users with problems go ARRIVE and so far few have managed to return their autonomy to normal. It doesn't matter what model the iDevice has, many of them have much weaker autonomy after performing this update and of course no one has an idea about how to solve the problem.
Last night I updated my iPhone 4S to iOS 6.1.3 and now it drains my battery in an extremely fast manner. As I started signing in to write this question from my iPhone I already lost 13 percent of my battery. I never had a problem with a battery and I've been using iPhones since the first one. I'm not sure if the software varies at all between carriers but I'm on AT&T, not Verizon. My phone would hold 100 percent charge for over five hours on standby. Now within an hour it drains to 85 percent.
It was expected that after an update like this there would be people complaining about such problems, but considering that iOS 6.1.4 he won't let us wait too long, I think they will be resolved then. You had problems with the autonomy of the battery after installation iOS 6.1.3?
