I have problems with my Dell E6410 running 11.04 Natty Narwhal. I
noticed some strange values for BAT0 (I have BAT1 but not installed).
The following were from when my computer's battery was fully charged and
on AC power:
$ cat /sys/class/power_supply/BAT0/charge_full
8061000
$ cat /sys/class/power_supply/BAT0/charge_now
8400000
$ cat /sys/class/power_supply/BAT0/charge_full_design
8400000
Device: /org/freedesktop/UPower/devices/battery_BAT0
native-path:
/sys/devices/LNXSYSTM:00/device:00/PNP0C0A:00/power_supply/BAT0
vendor: SMP
model: DELL HJ59002
serial: 6061
power supply: yes
updated: Tue Nov 29 14:48:33 2011 (631 seconds ago)
has history: yes
has statistics: yes
battery
present: yes
rechargeable: yes
state: fully-charged
energy: 93.24 Wh
energy-empty: 0 Wh
energy-full: 93.24 Wh
energy-full-design: 93.24 Wh
energy-rate: 2.997 W
voltage: 13.038 V
percentage: 100%
capacity: 95.9643%
technology: lithium-ion
$ upower -v
UPower client version 0.9.9
UPower daemon version 0.9.9
So may battery says it has 100% charge, but that it is no longer capable
of 100% charge (capacity = 95.9643%). The battery charge indicator in
Gnome (classic) displays what looks like a critical battery icon (red
battery outline), but the drop-down menu lists "Laptop battery is
charged." Sometimes I will get an indicator that the battery is critical
as soon as I unplug AC power, at which time it will hibernate.
It seems like there is some error when it receives values with
charge_now > charge_full. Does anyone else with this problem see similar
values?
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https://bugs.launchpad.net/bugs/531190
Title:
upower (devkit-power) reporting bad data when AC cable is unplugged
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https://bugs.launchpad.net/devicekit-power/+bug/531190/+subscriptions
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