Improve your IPhone Battery Life : 20 Useful Tips

• Are you suffering from poor battery life on your iOS device? 
• Does your iPad/iPhone/iPod no longer last 10 hours? 
• Consider using these tips and tricks to increase your battery life.

Here some tips for you...

1) Stay Updated – new firmware and software updates often include more battery-efficient code so update and keep current if you can. You can learn how to update OTA here. Note: jailbreakers/unlockers will want to avoid updating until any new firmware has been deemed jailbreakable.

2) Turn off 3G – Your iPhone or iPad will search for a 3G network regularly. If you do not use 3G you should disable it. Settings > General and set 3G to Off.

3) Turn off Wi-Fi – Your iOS device will search for a network everywhere to turn off Wi-Fi go to Settings > Wi-Fi and set Wi-Fi to Off, turning off the Wi-Fi function ‘Ask to Join Networks’ can help as well.

4) Turn off Bluetooth – Turn off Bluetooth when not in use.Go to Settings > General > Bluetooth and set Bluetooth to Off.

5) Turn off Location Services – Application can track your location using Location Services. To disable location services, go to Settings > General > Location Services or use location services only when needed.

6) Turn off Notifications – To disable notifications, go to Settings > Notifications and set Notifications to ‘Off.’ Setting “View in lock screen” to ‘Off.’ will disable your screen from lighting up when you receive a new notification from any given app.

7) Disable Auto-check or reduce your number of email accounts – This can be accomplished by turning off an email account or by deleting it. To turn off an account, go to Settings > Mail, Contacts, Calendars, choose an email account, and set Account to Off. To remove an account, go to Settings > Mail, Contacts, Calendars, choose an email account, and tap Delete Account.To disable auto-check go to Settings > Mail, Contacts, Calendars > Fetch New Data, toggle Push at the top to Off, and then set Fetch to Manually.

8) Use Airplane Mode (To Reset Mobile data connectivity issue)  – To disable all radio signals (Cellular Network, Wi-Fi, Bluetooth) on your iOS device with a simple setting turn on Airplane Mode, go to Settings and set Airplane Mode to ‘On.’

9) Disable iCloud – iCloud checks for new data all the time to disable iCloud go to Settings > General > iCloud > Turn everything to ‘Off’ or use iCloud’s services only when needed.

10) Disable Time Zone Adjustment – If you don’t travel frequently disable Time Zone Adjustment go to Settings > Location Services > System Services > and set ‘Setting Time Zone’ to ‘Off.’

11) Disable Location Based iAds – To disable location based advertising go toSettings > Location Services > System Services > and set ‘Location Based iAds’ to ‘Off.’

12) Disable iTunes Ping- Ping iTunes’s social network can be known to drain battery to disable Ping go to Settings > General > Restrictions > Enable Restrictions > and set Ping to ‘Off.’

13) Disable Sending Diagnostic & Usage Reports to Apple – iOS sends diagnostic & usage reports back to the mothership to disable go to Settings > General > About > Diagnostic & Usage > and set it to ‘Don’t Send.’

14) Quit Applications from Multitasking – Make sure to completely close apps when you are done with them to save battery power. Simply double tap the home button and remove the application from the multitasking bar the same way you would remove applications from the home screen by holding down on an icon.

15) Equalizer – Turn the EQ off if you don’t need it. To disable go to Settings > Music > EQ and set EQ to ‘Off.’

16) Turn down the Brightness Down -Dimming the brightness is another way to extend battery life. Go to Settings > Brightness and drag the slider to the left to lower the default screen brightness. Turning on Auto-Brightness allows the screen to adjust its brightness based on the lighting conditions. Turn the brightness down as low as possible (~0-25% is best).

17) Lock the Screen – Use a short ‘Auto Lock’ time. Turn the screen off whenever it’s not in use by a quick press of the power button (top).

18) Disable Raise to Speak – Disabling Rise to Speak will disable Siri when you raise the iPhone 4S to your face to disable go to Settings > General > Siri. and set ‘Raise To Speak’ to ‘Off.’

19) Maintenance in storage – If your don’t use your device regularly, try to complete one full charge cycle per month to slow battery degradation. This can be staggered, e.g. use 50% of battery, charge full and then use 50% again. When not in use store your device below 45° C (113° F) to prevent heat damage to the battery’s capacity. Store your device with a partial (~40% best) charge.
Keep your iOS device cool! Lithium-ion battery capacity rapidly decays if exposed to high temperatures. Don’t leave your device in the car. Maximum operating temperature suggested is 35° C (95° F). Avoid charging when hot as this can further damage the battery’s capacity. If possible remove any cover/skin when charging to help prevent overheating. Turn your iOS device off and let it cool down if you receive a message similar to this:

20) Restore your device in iTunes – If these solutions did not help you consider restoring your iOS device in iTunes. Be sure to backup your device beforehand.

Safety note: If your battery ever becomes too hot to touch while charging then remove from charge immediately and leave to cool [note that it is normal for the device to get warm while charging but it should never be too hot to touch]. If this happens on a regular basis you may need to speak to Apple and possibly return your device and/or USB cable as one or the other may be faulty. Also be aware that cheap USB charging cables and wall adapters should be avoided. It’s worth the expense of buying brand names.

Jailbreaking your iphone may chances of impacting the battery life. To use full version of apps don't jail break your iphone. Better use similar apps like idiscount & grab some paid/pro apps for free. 

I know its a quite long story. Hope it worth 2 cents.. 

Stay Tune..