[How to]Increase Iphone Battery Life On iOS5.0 & iOS5.0.1 (iPhone4 Jailbroken ONLY)

Just like a computer’s operating system, iOS also comes with a power management system that adjusts how much your device uses power. By editing the com.apple.SystemPowerProfileDefaults.plist file, you may be able to squeeze more juice out of your battery.
I left my iPhone overnight at 85% battery power with WiFi, 3G and GPS  turned on. By 8am the next day, it only consumed 2% of power. Not too  bad at all.
Steps:
1. Download

1-iFunBox-Download =  http://dl.i-funbox.com/ifunbox_en.zip
OR
2-itools- Download = http://www.mediafire.com/?xaal58pw3cxcou7
OR
3-DiskAid - Download = http://www.digidna.net/products/diskaid

2. Download one of the power profiles below: (My suggestion is to take ULTRA)

• Ultra power saving profile ultra_power_saving_mode.zip =" http://potload.com/xxgl504lme2y"
• Medium power saving profile medium_power_saving_mode.zip = " http://potload.com/asn44jbqaoyx "

3. Launch DiskAid or i-FunBox  or iTools and browse to the following folder location:
/System/Library/CoreServices/powerd.bundle/

4. Replace or overwrite the com.apple.SystemPowerProfileDefaults.plist with the one you just downloaded in step 2.

5. Reboot your device and you’re done!

If you like to revert to default power profile, simply use the default power profile plist file.
I haven’t tried this on iOS 4.x yet but if you would like to try (at  your own risk), the .pfile file is located at the following folder: /System/Library/SystemConfiguration/PowerManagement.bundle

source: http://insanelyi.com/topic/9397-increase-iphone-battery-life-on-ios-50-or-501/

up up up

bump

Nice thread bro

thanks

bump....