Only at Best BuyEnsure your cell phone or tablet is ready for use on the go with this Insignia™ NS-MB2603 portable charger, which features a USB port for simple connection to a wide range of devices. The 2600 mAh capacity enables rapid charging.
Although this charger did not charge as quickly as I needed it too it came in handy. It stays charged quite a while even after I finished charging my phone. Great size and great for just extra juice one in a while.
mophie powerstation mini: Built to keep your smartphone full of power throughout the day to help it keep up with your busy lifestyle, this charger fits right in your pocket, and has a protective metal outer band.
I took this with me recently on a trip. And it charged my phone pretty quickly and was small enough to fit in my bag. It is a bit larger than most portables but it is kinda slim so it fits snug in some spaces in purses or backpacks. And it has spaces to keep the charger attached which came in handy when running around.