I'm at the bottom of the family's iPhone foodchain, and am currently rocking an iPhone 4. For a few months it's had occasional moments of madness whether charging from a plug or a USB port, boinging away, charging > not charging > charging ad infinitum. But today... it's trickle charging. Incrementing by 2-3% an hour, while not showing the charging symbol nor appearing in iTunes if connected to a Mac. I ran the battery flat to see if that would make it buck its ideas up, but not dice. It *did* show the 'connected' graphic on screen when first plugged in, though. The battery, needless to say, is a dodgy eBay number. But it's at least and year old and terms of battery life it's been very good up to this point. Any clues/suggestions? Am scrabbling around to find another olde worlde charging cable but it doesn't 'feel' like a cable failure. One of my daughters' contracts is ending in a month's time and she'll be upgrading to an SE, at which point I'll inherit her 5c. Therefore not contemplating a new battery or swapping out the charging unit; would be cheaper to bring my daughter's upgrade forward.