The battery is sealed into the handset, and while it has a high capacity (2, 400 mAh), the screen along with the 4G LTE radios will place a lot of demand on the power source.

FORBES: A Mature Android Smartphone - The Sony Xperia Z Review

We hear you said, "The last thing you want to do for a shared use computer is have it be something without a disk ... and with a tiny little screen, " and went on to slap it on using a crank as a power source where there's no electricity.

ENGADGET: Bill Gates has his say of things