I have to say I have ordered these before and have had little to no problems. So I saved them in case I need them again. The last time I ordered them I was very disappointed. The first (of three packs) stopped working after just a day and wouldn't charge (even though it was firmly connected to my phone). The second worked maybe 3 days before I had the same problem and it only charged sporadically when I played with it and wiggled it and even then if I hit it or breathed it stopped working. I'm currently using the third one and haven't had any problems so far (2 days later). But the experience left me with a bad taste in my mouth and unfortunately I think I'll be getting my charging cables elsewhere from now on.