Hmmmm....
My extended battery has been misbehaving lately.
Ever since Launch Day, I've used Ginny as my bedside clock, plugged in, and awakened to a full charge for the day. For the last 2 mornings, though, I have been awakened by my alarm... followed by a low battery alert!
SO: It's either the Nexus charging circuits or the battery. I think I can safely eliminate the circuits, since the phone charges up fine during the day. That leaves the battery.
I'm back on the standard battery for 24 hours to see if it charges overnight. If it does, then it looks like a call to Verizon is in order to get a new extended battery.
We'll see what happens tomorrow morning...