I got my N800 about a month ago, and when I first got it the battery life was great. I leave it on all the time, and when I am not using it I lock the screen so that it doesn't come out of standby accidentally. I was getting days of battery life this way.

In the past week, the battery doesn't even hold for a whole day. I charge it at night, and by 3pm it runs out of battery life. I don't understand why. I can't think of anything I installed that could have caused it.

The programs that I run continuously are Skype and Pidgin. Sometimes I am moving in and out of wireless zones, and when I take it out of standby I've got pidgin messages telling me that it was disconnected, or whatever, and skype may be blinking if I have messages. But it seems like it was in standby, because the screen is off.

How can I troubleshoot this? Has anyone else experienced it? First thing I'm going to try is running with no apps up, see what happens. Then I'll add skype, then pidgin - I can do without pidgin, but not skype.