As the world waits for Apple to issue a software patch to cure the rapid iPhone battery drain experienced by some iOS 5 users, Philips has launched an app that will allow you to make the most of what time you do have on that malfunctioning cell.

The BatterySafe app is a free app, available to download now, which will make suggestions on how to best optimise your remaining battery life, based on what you need to do with your phone.

It''ll tell you how much time you have left for internet browsing, video playback, making phonecalls, playing games, listening to music and reading ebooks.

Rather than follow the route of Advanced Task Killers and other Android battery-enhancers that allow you to kill the offending apps, BatterySense uses a "What if" feature to tell you how much life you have left if you alter various settings.

Apple has admitted that bugs in iOS 5 are causing some iPhone users to experience dramatically reduced battery life and has promised a software update "in a few weeks."

In the meantime, this handy-free app from Philips may help you through.

Link: App Store (via Technorati)