Description of problem: Battery Charge Level in gnome-power-management applet Version-Release number of selected component (if applicable): gnome-power-manager-2.26.2-1.fc11.x86_64 How reproducible: Issue can be reproduced every time. The battery is fully charged and gnome-power-manager confirms that the battery is fully charged. After unplugging the AC cable, waiting a few seconds, plugging it back in, the gnome-power-manager indicates that the battery is charging and that the battery level is at 87.3%. If you wait approximately 30 seconds the gnome-power-manager applet icon will change from charging to fully charged. Steps to Reproduce: 1. Begin with laptop plugged in to AC. 2. Make sure battery level reads fully charged. 3. Unplug AC cable from laptop for about 2 or 3 seconds. 4. Plug AC cable back into laptop. 5. Battery charge level reads 87.3%. 6. Don't hold the mouse over the gnome-power-manager applet, wait about 20 to 30 seconds. 7. gnome-power-manager applet will indicate that the battery is fully charged. Actual results: If briefly unplugging and plugging back in the AC the battery charge level indicates that it's 87.3%. Expected results: I'm not sure what the real number should be, but probably 99.9% or something like that. Additional info: Running kernel 2.6.29.5-191.fc11.x86_64. Laptop is a XPS M1330. Distribution is running with latest patches and was rebooted prior to performing these tests. Issue did not exist in previous versions of Fedora. gnome-power-manager device information reads as follows: Product: Laptop battery Status: Charged Percentage charge: 100.0% Vendor: Samsung SDI Technology: Lithium Ion Serial number: xxxxx Model: DELL PU5567 Capacity: 88.2% (Fair) Current charge: 86.6 Wh Design charge: 86.6 Wh Charge rate: 4.2 W
Can you add screenshots of the statistics graphs in gnome-power-statistics please. Thanks.
Created attachment 351384 [details] Screenshots of gnome-power-statistics
Cool, thanks for that. The battery looks pretty broken -- it only charges up to 87%, i.e. it looks like the internal calibration is broken. Is the battery very new? In which can discharge the battery from 100->0% and then 0->100% a few times to get the internal calibration bits to function correctly. If the battery is more than a year old, it's likely it's broken, and you should probably contact dell. Show them the "Laptop Battery History - Charge.png" if they need proof it's broken.