Anker Astro E5 15000mAh Dual USB Portable Charger for $35.99 shipped after code AASTROE5.  Here is a screenshot for reference.  It has a fairly large capacity of 15000 mAh, dual USB ports (5V / 2A and 5V / 1A) that allow for simultaneous charging of iPad, iPhone, Android, and various other devices.  You may also [...]