A:AnswerYes, you can plug it into a computer's USB or into a much faster USB wall adapter. Computer USB's output at a max of 0.9A which means it could take a while to fully charge it. Your standard wall USB adapter for your mobile devices will likely work much better. Anything with a 1.0A to 2.1A range should charge this battery pack relatively quickly.
A:AnswerYes however the supplied cord will not be compatible. You would need to plug in the cable that came supplied with the iphone. Otherwise it will work perfectly.