AT&T Zero USB Charger with Micro-USB Cable - 2 Pack (Refurbished)Product Review (submitted on January 12, 2013):
I bought 4 of these (2 x 2-pack). They charge the battery on the phone, but they don't switch off when you unplug the USB cable. Which basically makes them a regular charger with an annoying blue light. I can understand 1 slipping through the refurb process, but all 4???? And not the first AT&T refurb I have bought from this site that failed in quantity - I should have known better.