updated 04:45 pm EST, Wed February 9, 2011
1500mAh lithium battery doubles iPhone 4 runtime
Mophie has started pre-orders for a new Juice Pack Air. The revised battery case is now fully compatible with both AT&T and Verizon iPhone 4s, which differ slightly but can both be accommodated. The case uses a dual-color design available in black and silver, or red and white, an option which will ship later. To make sound clearer, speaker output is funneled from the bottom of an iPhone through to the case's front.
The Air's lithium polymer battery is rated at 1500mAh, said to offer almost double an iPhone's built-in capacity. The case has a four-LED readout for tracking charge, and includes an on-off switch for saving power when the extra supply isn't needed.
The upgraded Juice Pack Air is expected to ship February 28th, and can be pre-ordered today for $80.