Mine not so good, it keeps draining, it's worse when I am traveling or in other areas. If I put it on airplane mode, the battery lasts all day when the screen is off (sleep/awake button pressed), but as soon as i turn cellular network on, I start to see the battery tip on the icon emptying even when screen is off. My brother's lasts longer and its the same phone and carrier, I factory restored it, no luck. I do use location services with facebook running, could that be why? I get better battery at home with location services on or off, still not the best life, but better. I get around 8 hours with light to moderate use when home, but when I traveled through florida, it just kept on draining. My brother looked like his lasted all day and he watches netflix. I looked on his phone annd he has location services turned off. I live in new york and just went on a trip to florida. It's better in brooklyn here in new york.