Mophie has unveiled its second iPhone 5-compatible charging case: the Juice Pack Air. The Air will retail for $99. Black models will ship in 7 to 10 business days, while the red and white flavors will begin shipping on March 22.

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The Juice Pack Air includes a 1700mAh battery. That is 200mAh more of juice compared to Mophie’s recently released Juice Pack Helium case. Here are the benefits, according to Mophie, over an iPhone 5 without a Juice Pack Air:

Talk Time Up to additional 8 hours on 3G

Internet Use Up to additional 8 hours on 3G Up to additional 8 hours on LTE Up to additional 10 hours on WiFi

Audio Playback Up to 40 hours

Video Playback Up to 10 hours

The Air’s extra juice is a $20 premium over the Helium’s $79 price point.