Being able to double the battery life of the iPad sound good enough, but getting a smart case too, well that just makes the whole thing sound like a good deal. This case claims to extend the battery life to around twenty four hours of use, which is excellent for travellers.
These are the features and specs for the case that doubles the battery life of the iPad;
The battery effectively doubles an iPad’s battery life, providing up to 24 hours of continuous video playback or up to 12 hours of industrious use (highest brightness, loudest volume, enabled Wi-Fi, and graphics-heavy games). The included cable connects the battery to an iPad’s charging port while the iPad nestles inside the cover. The case protects an iPad on all four sides yet keeps controls exposed for easy access. The cover adjusts for laptop use while typing and browsing or upright use for watching movies. Plugging the battery into a computer or AC using the included USB cable results in a full charge after nine hours. Compatible with iPad and iPad2. 9 3/4″ L x 9 1/2″ H x 1/4″ D. (3/4 lb)
Priced at $149.95
Source [Hammacher and Schlemmer]