ZAGG SPARQ 2.0
The iPad delivers on its 10 hour battery life promise, but for students who plan to travel or routinely forget to charge their gadgets the ZAGG SPARQ 2.0 is a great iPad accessory.
The Sparq 2.0 is a small portable power pack capable of adding five to six hours of video playback to the iPad or charging the iPhone up to 4 times. The portable battery includes two USB ports, one of which is optimized to charge an iPhone as fast as if it were plugged into the wall.
ZAGG made sure this little powerhouse can charge the iPad, and in my use it's able to add about 30% more iPad battery life in less than an hour while plugged into the optimized port.
The plug to charge the ZAGG Sparq 2.0 flips out of the side and the two USB ports accept chargers for the iPad, iPhone, Android phones and pretty much anything that charges over USB.
$99 at Zagg