If you’re Sony Xperia handset uses the NovaThor U8500 chipset and you are frustrated by the battery life then you may want to check out Xcore.
The app works for the Sony Xperia P, Xperia U, Xperia go and Xperia sola by disabling a CPU core to enhance battery performance.
This app features a simple UI on/off toggle to enable or disable the action. If you want to try the app yourself, click here.
But, note that your phone needs to be rooted for this to work.