I've just bought Xperia z and everything seems to work fine except the battery life.. The battery had obviously problems (discharging while charging and playing a game) so I went back to the store and the next day after they checked it out they replaced it.. The 2nd one hasn't shown yet that kind of problems but.. Just to be cautious I did some kind of test myshelf: I charged while it was off, then turned it on and opened only one app chrome and started surfing online with Wifi (3g/4G all closed and no call made and NO other external apps were installed or running at that time). And while I was surfing I took note of the battery percentage from time to time.. So this is my "timeline": 95% 11:05 90% 11:20 89% 11:23 88% 11:25 77% 12:00 73% 12:27 ... Does this battery consumption looks normal?