Just noticed this, so I'm not quite sure when it started happening, etc. I'm using a 1GHZ 12" PB, OS X.3.6
I was running off my battery last night, and I noticed it said 92%, yet I had been using the battery heavily for about 1 hour. I changed the battery icon to "time" it then updated to show the correct amount of time that was left, much less than the 92% that was showing. However, it did not update the time after that.
The battery is functioning properly; draining with no issues and charging with no problems. I'm not sure what else could be going on. Perhaps a reboot would fix this? I'll try that this evening, but I was wondering if others have experienced this?
Thanks!