Here's a useful iPhone app while we wait for Apple to release iOS5.0.1 update to fix battery life problems on iOS5.
The app is from Philips and will tell you how much juice you've got left for different things like standby, playing music or video, games etc. You can also tell the app how long would you like the battery charge to last, and it will give you suggestions on how to conserve power.
It's free and it's a universal app so will work with the iPhone, iPad and iPod Touch. And you can get it in the Apple App Store.
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