If our review of the Mophie Juice Pack battery for the iPhone 3G appeals, but you know you're just too clumsy to cope without a more comprehensive case for your precious Apple cellphone, Incase may ...

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 ...

Microsoft has unveiled a new power-slider feature for its Windows 10 Creators Update to help squeeze more life out of the battery on Windows devices. The power slider appears in the latest Fast Ring ...