A pocket-sized charger can be the saving grace of anybody who is constantly on the go. Sometimes you simply can't get to an outlet and your phone is dying. Those moments before your phone dies due to not being within proximity of a wall outlet are heartbreaking, but that doesn't have to be the case for much longer.
The Anker Astro-Mini 3000 is about the same size as a tube of lipstick, so it will never get in the way. The charger attaches by USB to the phone and while it's attached, your phone will transfer the charge from the mini tube to the phone. The pocket-sized charger takes about two hours to fully charge and provides more than a complete charge to an iPhone 5.