Save Battery on Android device

One quick hack to save battery is under the “Developer Options”, all the way at the bottom there is a setting for “Background Process Limit.”

It defaults, resetting with every reboot, to “Standard Limit,” but change it to “At most 4 processes.” With my usage, I generally make it a full day.

Check it out. And if you dont see the developer mode on you jelly bean device check out following article:

How to enabled Developer mode in Jelly bean