Since the release of Apple’s most advanced mobile operating system, the iOS 5, some users have experienced significant reduction in the battery life of their idevices. It appears a bug in the software constantly tries to access the location-based data.
Apple has officially released the version 5.0.1 upgrade which addresses that issue. Right now, the beta version is only available to individuals with Developer Accounts. The final version will be released once further testing has been completed on the beta version.
If you’re experiencing this battery drain issue, a quick fix would be to turn off ‘Location’ in the Settings app. Most users have experienced significant improvements with location settings turned off.