Weird Gnome power manager behavior

[Paolo Galtieri]

I was playing with my laptop and I noticed it showed my battery was at 
99.2 % full, even though it has been plugged into the AC all day.  I 
then unplugged it from the AC and went on battery. When I looked at the 
battery status via the gnome-power-manager it said I had 2 hours and 50 
minutes of use.  I checked 10 minutes later and it said I had 1 hour 55 
minutes of use left.  Then I plugged it back into the AC and it said I 
was 97.4 % full and it would take 15 minutes to fully charge. When it 
got to 98.1 % full it said it would take 20 minutes to fully charge.  
When it got to 98.5 % full it was going to take 30 minutes until fully 
charged.  At this rate it will take longer to charge the battery than 
the amount of time I was actually on battery. Either Linux/Gnome can't 
figure out how long it takes to charge a battery or this is one fucked 
up battery.  It's now at 98.8 % full and it's going to take 35 minutes 
until fully charged.  It didn't actually take that long it completed 
within a few minutes.  Has anybody else seen this strange behavior with 
the gnome-power-manager (2.26.2)?  This battery is less than 2 weeks 
old.  I had to replace the original Dell battery since it died just 
after the warranty period ended  :-( .

I'm running F11 with latest updates on a Dell Precision M65.

Paolo