The Power Slider -- a protective iPhone case that doubles as a second battery -- appears to be the first practical solution to extend the handset's meager battery life. The Power Slider contains a ...

One of the biggest customer complaints about the iPhone 4S is battery life. The battery never manages to last even a whole day and sometimes not even a half of a day. Although the iPhone 4 has always ...

The iPhone 3G's battery is one of its worst Achilles heels, though admittedly one that owners of the previous iPhone generation and anxious owners-to-be thrust upon us all. "Give us 3G data!" we ...