This is my 2nd Verizon 5a. The first one died on thanksgiving (4 weeks old). Apple replaced it with a refurb. They said it had a brand new battery. I felt that battery was sort of crappy the week before 7.1 came out. Just a feel tho. I updated to 7.1 from iTunes. Now my phone is draining 25% in less than an hour within or use. I watched a 2 hour movie and it went from 100% to 60%. I do notice that the location service arrow on the top bar flickers on and off randomly. I have checked location services and just the google app shows it was used. My wife's iphone 5 is doing the same thing. I read today on Redmond pie that 7.1 is now staring to show abnormal battery drainage. Anybody have more info on this? Otherwise I was going to bring to the apple store and have them check the battery. Hopefully they will replace it again.