Hi, Long time lurger, first time poster looking for advice on my battery: I have had the phone a couple of weeks. It is 6 months old and still in warranty. iOS6 - most things on, wifi left on even whilst not in use. FYI - it was plugged into car charger for about 10 min. My iPhone 4 seemed to do much better, and my wifes 5 seems better still. Do I have grounds to book a Genius appt and ask for a replacement or have I just been lucky with my other phones? One curious point that I haven't replicated yet was I turned the phone off at 7% battery. Turned it on an hour later and it refused to turn on, giving me the dead battery animation. Is it normal for it to refuse to boot when it gets lower than 10% or is it draining on its own?