uNu Ultrapak 3,000 mAh Power Bank

$39.99 at the mothership

http://www.amazon.com/UNU-Ultrapak-3000mAH-Portable-Charger/dp/B00K8I4JHY

And for this price (or even the MS price) it should be 30,000 rather than 3,000, even with the cool display