A lot of power for a low price.

Here's a really nice external high capacity power bank charger from Anker. It has an ultra slim 0.4 inch profile with an attractive piano-style black varnish finish. Here’s some info from Amazon: Supply instant power to charge your device anytime, anywhere. High capacity: 3200mAh, 1 full charge or add 10 hours of talk time to your iPhone 4S / 4G / 3GS, 100+ hours audio playback, or 100% - 200% to the battery life of most mobile phones. Super convenient built-in Micro-USB charging plug frees you from carrying any extra cables when you're on the go; USB output also available for most all your other mobile devices; Convenient flashlight for night & low-light use activates after pressing the Power button for 2 seconds. Charges via Micro-USB power wire (included) or AC adapter (not included). Input: 5V 1A; Output: USB 5V 0.6A; Dimensions: 4.17 x 2.24 x 0.4 inches. Package includes: Anker External Battery / 1 Micro-USB tip / 1 USB to Micro-USB power wire. And now back to The Giz Wiz. And the price is right! MSRP $37.99, but on Amazon it’s just $22.99! And it’s on Amazon Prime, so you’re a member, shipping is free.

http://www.amazon.com/dp/B0054U6CEE/?tag=twnene-20

Here's a really nice external high capacity power bank charger from Anker. It has an ultra slim 0.4 inch profile with an attractive piano-style black varnish finish. Here’s some info from Amazon: Supply instant power to charge your device anytime, anywhere. High capacity: 3200mAh, 1 full charge or add 10 hours of talk time to your iPhone 4S / 4G / 3GS, 100+ hours audio playback, or 100% - 200% to the battery life of most mobile phones. Super convenient built-in Micro-USB charging plug frees you from carrying any extra cables when you're on the go; USB output also available for most all your other mobile devices; Convenient flashlight for night & low-light use activates after pressing the Power button for 2 seconds. Charges via Micro-USB power wire (included) or AC adapter (not included). Input: 5V 1A; Output: USB 5V 0.6A; Dimensions: 4.17 x 2.24 x 0.4 inches. Package includes: Anker External Battery / 1 Micro-USB tip / 1 USB to Micro-USB power wire. And now back to The Giz Wiz. And the price is right! MSRP $37.99, but on Amazon it’s just $22.99! And it’s on Amazon Prime, so you’re a member, shipping is free.

http://www.amazon.com/dp/B0054U6CEE/?tag=twnene-20