mophie is launching a new juice pack battery case for the iPhone 5. The new model, called the juice pack air, promises faster charging, higher capacity, and a thinner design. mophie even claims that the new case is designed to act as an amplifier for the iPhone 5's speaker. Two weeks ago, the company also launched the juice pack helium, which comes with a lower capacity, as a trade-off for an even thinner design.

The larger of the two cases, the newly launched air, comes with a 1700 mAh lithium polymer battery, which mophie promises will deliver up to eight hours additional talk time on 3G, eight hours of internet usage on 3G and LTE, and ten hours of internet on Wi-Fi. It also promises up to 40 hours of additional audio and ten hours of video playback.

The smaller helium case, with its 1500 mAh lithium polymer battery, will give users up to six hours of talk time on 3G, six hours of Internet on 3G and LTE, seven hours on Wi-Fi, 30 hours of audio, and seven hours of video playback.

The air's dimensions are 2.60 x 5.54 x 0.63 inches (6.6 x 14 x 1.6 cm) while the helium measures 2.49 x 5.49 x 0.59 inches (6.3 x 13.9 x 1.5 cm). The air tips the scales at 2.68 oz (76 g) and the helium weighs in at 2.44 oz (69 g).

Both cases have a standby switch that allows users to disable the charging capabilities and let the iPhone 5's battery run low. Users can switch the case on when the battery is down, which the company claims will provide users with the "biggest battery boost from the juice pack," because the iPhone uses more power when it's constantly charging.

The air comes in three color choices — red, black and white. The helium, on the other hand, only comes in dark metallic and silver metallic.

The larger-capacity air is available at a retail price of US$99.95, and the helium will set buyers back $79.95.

Source: mophie air and mophie helium product pages

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