Amazon has a great deal on the new 10400mah Cell Phone Portable External Battery Power Bank Backup Charger Pack for only $34.99 shipped (was $109.99).

Charge nearly any phone, tablet, and e-reader without an outlet. Our portable power outlet has hours of power for all types of devices and the small sleek body slips easily into a pocket.
Whether you’re stuck in a strange country without a power adapter, have hours to kill on a long flight, or simply forgot to plug in your phone the night before, no more worries.
We have the most reliable portable phone charger in the world. In fact, we’re so sure of it that we offer a 12-month warranty.

• Heavy duty 5V@2A-1A Dual USB external battery charges 2 devices rapidly. 2A output is for iPad/Tablet and 1A output is for iPhone/Smart phones.
• Compatible with most Smartphone’s (Apple, Samsung, HTC, Motorola, LG, Nokia, Blackberry, Sony, etc…) and 5V Tablets compatible devices.
• No iPhone/iPad lightning adapter or cable is included but 30pin cable is included. LiBA U10 power bank backup charger pack is compatible with the original lightning/ 30 pin Apple cables.
• No AC charger and/or iPhone/iPad adapter is included, but the LiBa U10 portable external battery charger is compatible with all original Apple cables and AC chargers.
• Includes built-in micro-USB cable for charging most new smartphones.

NOTE: Amazon prices can change without notice.