[Bug 14246] fully charged battery is at 118% capacity

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http://bugzilla.ubuntu.com/show_bug.cgi?id=14246
Ubuntu (laptop) | hal





------- Additional Comments From robitaille at ubuntu.com  2005-09-10 04:54 UTC -------
While the gnome-panel applet doesn't display anymore a charge of 118% with the
new hal, the status of the battery is still a bit suspect, at least according to
/proc/acpi/battery/BAT0/state

So I went on battery power for a few minutes, enough for the battery applet to
tell me that it was now down to 99%.  A look at the state file shows:

daniel at ubuntu:~$ cat /proc/acpi/battery/BAT0/state
present:                 yes
capacity state:          ok
charging state:          discharging
present rate:            unknown
remaining capacity:      3747 mAh
present voltage:         10033 mV

Now I plug in the AC power, I nearly immediately get:

daniel at ubuntu:~$ cat /proc/acpi/battery/BAT0/state
present:                 yes
capacity state:          ok
charging state:          charged
present rate:            1 mA
remaining capacity:      4500 mAh
present voltage:         10479 mV

Let it charge for a few minutes, then unplug it again:
daniel at ubuntu:~$ cat /proc/acpi/battery/BAT0/state
present:                 yes
capacity state:          ok
charging state:          charged
present rate:            1602 mA
remaining capacity:      3799 mAh
present voltage:         10486 mV

So while visually the patch makes the applet works a lot better; the state file
of the battery still shows the puzzling fact that it cannot show a battery
charge between 3800 mAh and 4500 mAh.  It was the same problem in Hoary.  Maybe
I should check from within WinXP in the other partition to see what it displays.
 I have no idea what I actually get with a fully charged battery: its latest
full capacity (3800) or its designed capacity (4500).


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