This is a very good product and serves a vital need to those who need to charge their device when away from a plug. The only thing that I initially missed in the directions was that you must press the button next to the USB slots before it will start charging.

I bought it anyway and I’ve used it twice already. There’s been two nights when I’ve forgotten to plug the charger into my Nexus 4 and I had class at 8AM the next morning. My phone was almost dead, but all I had to do was bring the Xtra Juice with me.

This charger is good for charging while travelling or in an emergency. I got one full charge out of it on my S3 while I was travelling. Make sure to charge it up fully before you travel and your phone also.The size was the selling point for me.