For all people who want to know how to increase battery life!
Here we will put all solutions and information how to this.
1. Disable WiFi/Mobile Network - GPS - Bluetooth if you do not use them!
2. Set display brightness manually and reduce it (Settings » Sound & Display » Brightness)
3. Reduce screen timeout (Settings » Sound & display » Screen timeout)
4. Do not leave applications running and when you close them, close also from Recent Apps
5. Turn off Location system (Settings » Location & Security » Uncheck the boxes for Google Location Services and GPS Services)
6. Do not use Live Wallpapers, this will decrease your battery life!
7. Turn unnecessary hardware features off like 4G LTE network
8. Remove unused widgets from Home
9. Uninstall unused applications and keep your memory free
10. Have a Dual Core smartphone? Disable the last one! Attention. This will increase your battery life but will decrease your performance! (http://forum.xda-developers.com/show...94&postcount=1)
11. Turn off auto-sync. This will increase your battery more.
Have you got other solutions? Tell us! And we will put it into first post.