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Last time I charge my battery it was almost 8hrs ago and I still have 50% left. I've listen to pandora for at least 4 1/2 hours was on the phone for 2hrs and surf the net. Hope this helps!!
 
I am online all day so I dont get a decent battery backup. I end up charging my phone more twice a day.
 
As everybody's usage pattern is different the lifespan of your iPhones battery will differ.

I see my self as a moderate user and usually get approx 1.5 days before i have to recharge.

The best advice i can give you to take away any battery woes is to disable the battery % toggle, and just enjoy your iPhone. ;)
 
I'm very paranoid about my battery as I dont want it to die and I'm somewhere and have to contact someone. I've noticed that I get at the most 8, maybe a bit more if I am almost constantly on the Internet, Facebook, or other such apps. I don't know whether it's me or my phone.
 
My phone lasts me all day with moderate to heavy use. Sometimes, when I'm not on my phone too often, it lasts me 2 days. I am very happy with my battery life :D
 
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