Para po saakin (btw I am an IT student) hindi naman po masyadong useful ang mga battery saver apps since it will also add up to the number of processes of your device. Also, the best way to save battery power is adjusting the brightness ang turning off mobile data, bluetooth, and wifi if not in use. those are common features of battery saver apps which you can do yourself naman po.
Thumbs up po if nakatulong. Thank you!
Effective po ang battery applications. I do use one of many of them...
one that is effective for me (basic user) is the Advance Task Killer as it automatically terminates Background running apps that you do not use and do not know it is running. There by eliminating unnecessary CPU process thus utilizing battery power to its life. you can set the Kill Process to which ever you like dependent of what type or android phone user u are if you use it often set it to Every Hour or Every Half Hour. if not, set it to When screen is OFF.
For ROOT users, i Do recommend CPU Sleeper and or Greenify as this applications extended my Galaxy S2 battery from 1 day (to 2 days for Advance Task Killer) to 4 days (with call and text only).
its a different thing of course when using Wifi, Data connection, gaming and playing music.