I am thinking of getting a portable, rechargeable power bank for those times that my smartphone battery doesn't last. Does anybody here have any suggestions for good ones or ones to avoid? Are they all pretty much alike other than they vary by how may Milli-amperes they offer? They have a LOT of them listed at Radio Shack!
http://www.radioshack.com/family/in...6&pg=1&searchSort=TRUE&retainProdsInSession=1
http://www.radioshack.com/family/in...6&pg=1&searchSort=TRUE&retainProdsInSession=1