Can anyone tell me why the charging cables stop working for no apparent reason. I first used the cable that came with the ipad 2. That was ok but the cable was shorter than I needed so I bought a 2m cable. This cable worked ok at first but then it stopped, it wouldn't charge no matter what I did. So I had to put up with the shorter one. I tried buying another long one again and exactly the same thing happened. Anyone have any idea why? How can a connector just stop carrying the charge?