Had no wear or years of problems. I didn't even have a single flex or loss of power like all the ones I've bought in stores. One of them didn't seem to work after 3 months and yet it works in another phone I have. My cell phone didn't recognize it anymore. I've been using short and long for over 4 months now. Most of the ones I buy (untitled and branded) have lasted 6 weeks to a maximum of 2 months. And for all types. I will continue to buy as long as they supply them.