It stopped charging on the 10th day of a two week trip I see that my cradle is not the same as some others, perhaps mine is one of the older models? I bought it on the FM here, it was a bit wonkey until I sent it to a repair outfit (I think it was in MN). But of course just sent the unit, not the mount. My power cord has 4 pins, there is 12v at the 10 o'clock position; a ground at 4 o'clock. I don't know what the other 2 are for, the cord only has a power and ground lead. There is no 12v at any of the two rows of pins on the bottom. With a magnifying glass I could see that the plastic was a bit melted around the third pin from the left in the back row. Plus the pin wasn't quite as springy(?) as the others. Is there supposed to be voltage at that pin? For the first time I took off the back cover. I hope I'm not answering my own question, is that foil connector burned?