Originally Posted by wellersl
FWIW - The B&N USB cable has the extra pins because it provides a higher charge rate (more current) that the USB "standard" allows. In theory, a standard USB connection should charge the Nook, but it will take much longer. I'm wondering if the Nook was so discharged that the charge circuit wasn't being triggered by your USB connection. Was it your PC or an external charger? It's also possible that your USB connection voltage is too low. A fairly common problem. My Droid X is really picky about charge voltage.
From feeble memory, B&N charger = 1 Amp or 1000mA. USB = 500mA max.
Thanks, wellersl. This summer I had tried charging overnight with my regular microusb cable, which I believe came off of a wall charger. Before my Nook died, I had last charged it on the road using the same USB cable, but with a car to usb adapter. You have a good theory, though. I hope if anyone runs into the same problem, they will find these posts and try out the stock cable. I never like to use it because it is incompatible with other devices while using up a USB port.
I have been using my Nook most of the day. I updated CM7 and have done a factory reset - all on battery. After roughly 6 hours on battery it says I have 81% battery left. I am hoping the battery life has not been negatively effected by a full drain and four months of neglect.