I believe that my refurb iphone's battery life is below average. I know that rating the iphone's battery life is very subjective and varied depending on the kind of usage, but rate mine anyways. I get around 3 hours of internet usage and two days of stand by time before the phone shuts off. Reading some other posts, mine ranks quite below average. Also I have a problem with my usage counter. After I fully charge the iphone, the usage counter would work but an hour or two later, it would be become blank and tell me to fully charge my iphone to see the usage counter. Some additional info: This morning, after a full charge, I used the internet for around one to one and a half hours and after around 12-15 hours of standby time, the battery is around 50%.