Sudden bad battery life

[Rockboys]

i recently updated the software on my Sony Xperia E and now my battery life is bad i have to charge every 4 hours what can be wrong

[Alexander1]

Hi and welcome to the community! Since you're new please be sure that you have checked out our Discussion guidelines.

First of all I would suggest that you check what has been draining your battery. Go to settings > power management > battery usage.