Recently I have been getting some weird battery drop from my gsm gnex for att... I usually get pretty good battery life about 12-13 hours with 3 hours of screen on time... But there's been a couple times I've noticed that battery wasn't lasting as long so I randomly decided to shut down and take the battery out then when it boots up again the battery went from 35% to 14 and it's done this about 3 times so far and I just got it about a month ago... Has anyone heard of these issues before or experienced the same thing? Is my phone messed up?

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