[ubuntu] When battery completely charged indicator says something between 80-90%

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http://ubuntuforums.org – My battery meter is displaying the incorrect battery level. After a nights worth of charging I will turn it on and it will say something in the range of 80 - 90 % I will plug it back in it will flash "fully charged" and then say it is at 100%. I remove the plug to my computer and sometimes it says 100% other times it will say between 80-90% When I reboot to my previous version of Ubuntu (Jaunty) on another partition it displays 100% did they change the way the battery charge is displayed in Karmic? I have a Dell M1530. Does anyone know what's up? (Hardware)