I bought a refurb iphone from att... I don't think the battery is the best so far. What are honest expectations. I made one call today, checked my email auto every 15 minutes. Maybe about an hour of internet, 2 you tube movies via wifi, 30 min of ipod. The battery is more than halfway dead. Is this normal? I also see a thread that mentions that the att refurbs may have some bad batteries.