I wanted to watch a movie and decided to stream one via HBO Go... felt a little worried about not having my charger handy since (at the start) my battery was at 82%. I decided to go ahead and watch anyway and figured I would just grab the charger once the battery ran down low and I got "the notice" to charge it. Joy and sunshine when I realized that (at the end of the movie) my battery had not only made it through but it had only gone from 82% to 68%!! Maybe this isn't as impressive as I think but I have to say I couldn't even listen to XM on my last phone (Droid Pro) for 30 minutes without needing a charge!! I am once again amazed by this phone (it's becoming a trend).