iPhone 4 Tips - Battery Saving Secrets

How to Save iPhone 4 Battery Life

Une astuce pour préserver votre batterie sous iOs 5!?

1. Turn on Auto-Brightness

2. Reduce Screen Brightness

Find it in the Settings app > Brightness > Auto-Brightness On

3. Turn Bluetooth Off

Find it in Settings -> General -> Bluetooth -> Move Slider to Off

4. Turn Off 3G

Find it in Settings -> General -> Network -> Slide Enable 3g to Off

5. Keep Wi-Fi Off

Find it in Settings -> WiFi -> Slide to Off

6. Turn Off Location Services

Find it in Settings -> General -> Location Services -> Slide to Off

7. Turn Data Push Off

Find it in Settings -> Mail, Contacts, Calendar -> Fetch New Data -> Slide to Off

8. Fetch Email Less Often

Find it in Settings -> Mail, Contacts, Calendar -> Fetch New Data -> Select Your Preference

9. Auto-Lock Sooner

Find it in Settings -> General -> Auto-Lock -> Tap your Preference

10. Turn off Equalizer

Find it in Settings -> iPod -> EQ -> Tap off

11. Do Less-Battery-Intensive Things

Not all ways to save battery life involve settings. Some of them involve the way you use the phone. Things that require the phone be on for long periods of time, or use a lot of system resources, suck the most battery. These things include movies, games, and browsing the web. If you need to conserve battery, limit your use of battery-intensive apps.

12. Sleep and Wake Less

Constantly putting your phone to sleep and waking it up will drain battery life. Of course these functions are common parts of using the phone, but you can also be judicious in your turning on and off of the phone and save battery life at the same time.

13. Buy an Extended Life Battery

14. iPhone 4S & iOS 5: Turn Off Other Location Setting

Find it in Settings -> Location Services -> System Services -> Turn off Diagnostics & Usage, Location-Based iAds, and Setting Time Zone

Source : http://ipod.about.com

Full YOUTUBE video guide : http://www.youtube.com/watch?v=qUBd-bCarpI