Extend / Save Battery Life of iPhone 5

1. Reduce Screen Brightness via Settings->Brightness & Wallpaper
2. Turn Off Bluetooth via Settings->Bluetooth->Off
3. Turn Off LTE via Settings->General->Cellular->Enable LTE->Off
4. Turn Off Wi-Fi via Setting->Wi-Fi->Off
5. Turn Off Data Push via Settings->Mail, Contacts & Calendar->Fetch New Data->Push->Off
6. Turn On Auto-Brightness via Settings->Brightness & Wallpaper->Auto Brightness->On
7. Turn Off Location Service via Settings->Privacy->Location Services->Off
8. Reduce Mail Fetch via Settings->Mail, Contacts & Calendar->Fetch New Data
9. Reduce Auto-Lock period via Settings->General->Auto-Lock->1 Minute
10. Disable Unnecessary Notifications via Settings->Notifications
11. Disable Vibrations via Settings->Sounds
12. Disable Siri via Settings->Siri->Off
13. Turn Off Equalizer via Settings->Music->EQ->Off
14. Close unused App via Double Tap Home Button. Close App by pressing icon for a short period and tapping the red close icon beside the App.