Android is a great utility to use but, the biggest problem with it is the excessive battery drain. there are lots of apps that promise to control it but only few of them do a bit.
You will agree that many apps are not that useful than the battery they drain. And we, exactly need to find out such apps. BetterBatteryStats is the app which will tell you exactly which app uses how much battery.
And that is great, just install the app let it run for a day and then see its result. It will show you everything that uses battery like network, wi-fi, games, audio, video, etc. Now, you can decide which app you should uninstall.
Download BetterBatteryStats from the below links. Get it free or buy from Play store
Play Store (145.26 Rs) XDA forums (free)