The screen of smart phone becomes bigger and bigger, it improves user experience a lot. While nothing is perfect. The main problem caused by large screen is short battery. I had a bad experience with HTC HD2, the battery can't even last one day without playing game, vedio and music. It is really a shame if it shuts down when you are on an important trip.
I hereby introduce you guys the extended battery case which might make your mobile phone a little ugly, but does add your using time.The package includes one battery and one back cover.
Take a look at: http://www.gadgets-n-gizmos.com/catalogsearch/result/?order=relevance&dir=desc&q=extended+battery