So i pre ordered the iphone on the 3rd and it cam on the 8th. Just to give a little backround. I used the phone for 9 days and the battery would not last 5 hours i tried all the tips for apple and nothing final i said f--- this and i called apple and they said that there is something wrong with the battery. so i went to the apple store they check and they said nothing was wrong with the battery. But they will replace the phone for me. i Have been using the new phone the same way and have already had 6 hours of usage and 19 hours of stand by. So for all of the people wondering about there battery it might be bad and they are not telling you. get it replace. Just wanted to let everyone know.