I preordered a new matte black 128 gb 7+ from ATT. I received it a few days ago. I generally like it but have a major issue with battery life. With normal usage it's down to 65% at lunch by 7 pm it's at 30%. This is with no gaming and without watching much video. Just Safari, messaging, and phone. Did I get a bad phone? I have Location Services off, Bluetooth off, I just turned Auto Dim on. Are there any new features that would chew through my battery at a crazy rate? Any tricks to salvaging a new phone with a questionable battery?