I've updated my device about 1 1/2 monyh ago. I know which apps are draining my battery but that was not my point. What I wanted to say is, if apps are draining my battery it's ok but the battery should be draining gradually right? But when the battery is in like 10% but it showing me 50% and after a while it suddenly goes full empty. So I guess the battery progress percentage is stuck at some point and not showing the actual percentage.
Also found a new problem. When I put my phone on charge while it's off it shows the big green battery icon first but after a while if I press the power button once to see the icon, the whole display is white and there is no icon.
Great new new problems......I love Sony for make.foolish.