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Anyone have any idea what's going on with the percentage? (I wish my laptop was that awesome...)

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closed as off topic by fossfreedom May 22 '12 at 18:29

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Its based on current power usage, and sometimes its wrong with certain batteries. I get similar results. – Thomas Ward Jul 7 '11 at 16:51
@psusi: The 6 hours is correct, the 13% isn't. – Mehrdad Jul 7 '11 at 18:42
@Mehdrad, which version of Ubuntu is this? I found a very similar Launchpad bug for 10.04 LTS and 10.10 that unfortunately seems to have expired. – Christopher Kyle Horton Jul 11 '11 at 2:56
This is a bug in 11.04 that I've been seeing for a while now... this occurs every time the computer comes off of sleep and keeps displaying the incorrect percentage remaining but will show the correct time remaining – 13east Jul 18 '11 at 17:08
This question should instead be filed as a bug report, and as such is off-topic, thanks! Instructions on filing a bug report are here. – Jorge Castro May 22 '12 at 18:27

Try sudo powertop and see what that says...

Also, try letting the computer die while it is on battery power. That always updates my percentage.

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Also, try letting the computer die while it is on battery power... you're joking, right? Isn't the whole point to know how much battery I have left while it's > 0%? – Mehrdad Jul 18 '11 at 17:35
@Mehrdad: No, completely discharging a battery is a great way to recalibrate the meter. – Nathan Osman Oct 14 '11 at 6:56

The problem is that it shows the battery charge when full is much higher than the design charge. That cannot be. Hence the denominator increases and the percent becomes low.

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