Mophie's Juice Packs are by far the most popular solution for extra smartphone battery life, and at CES 2014 the company is showing off a new one with an added positive. As well as being a 1,700mAh battery case for iPhone 5 and 5s, the Space Pack also has built in storage which can hold any type of file, even from your iTunes library. The company also has a free iOS app called Space that allows you to view and organise your files on your iPhone.
The 16GB version will retail for $149.95 and 32GB version will set you back $179.95. UK prices should hopefully come soon. The Mophie Space Pack starts shipping on March 14, 2014.