Ok, so I noticed my new iphone 5s battery is a little, meh. atleast compared to my old iphone 4, it seems to to be draining noticeably faster. I did the basics like turn off blutooth, turn off LTE, lower brightness, turn auto lock to 2 min., turn off location services, and etc. but still the battery is draining a fair bit faster, even in standby. I dont know if this is normal for this phone or if I got a lemon. please help. I even tried rebooting it by holding bown the home and power button. Im tempted to do a total restore with no back up, as I heard sometimes backups can be corrupted, but thats the absolute last ditch effort.