Good news for Samsung Galaxy S3 owners. The first PowerCase for the handset is just about to go on sale in the UK via retailer Firebox.
The case clips on to the back of the handset and boots its power by eleven hours talk time, or six hours of web surfing.
It provides protection for ports and plugs, weigs80-odd grams and charges lithium-polymer backup battery charges up in five hours. You charge it up at the same time you charge the phone's internal battery.
Like the S3 itself it comes in both black and white.