My three broke, all in different ways. the first broke off on the usb, broke off (in the socket!). The second just stopped working, even though it looked good. The third one broke at the end of the zipper opening, STUCK INTO MY PHONE. had to be pulled out with tweezers. I had high hopes for these chargers due to the price and wanted to make sure I never ran out of a charger, figured three is such a good deal! I am very disappointed :/