Mophie have today announced the launch of another battery case for the iPhone 5, the new Juice Pack Air has been developed to be lighter and features a 1700mAh battery which according to the company, will provide an additional 8 hours of 3G/ LTE, 10 more hours on Wi-Fi, up to 40 hours of audio playback and up to 10 hours of video playback.

Basically the pack allows you to add extra life to your iPhone’s battery by switching on the case with the switch on the back, once the case itself is dead you can simply charge it and the phone at the same time using a microUSB port.

The case will ship to customers between 7 and 10 days from March 22nd, available in both red and white for $99.

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