Comment 11 for bug 838543

I have a similar issue with Dell E6420

$ upower --dump
Device: /org/freedesktop/UPower/devices/line_power_AC
  native-path: /sys/devices/LNXSYSTM:00/device:00/ACPI0003:00/power_supply/AC
  power supply: yes
  updated: Mon Oct 31 18:15:37 2011 (53425 seconds ago)
  has history: no
  has statistics: no
  line-power
    online: yes

Device: /org/freedesktop/UPower/devices/battery_BAT0
  native-path: /sys/devices/LNXSYSTM:00/device:00/PNP0C0A:00/power_supply/BAT0
  vendor: SMP
  model: DELL 5G67C16
  serial: 1407
  power supply: yes
  updated: Tue Nov 1 08:59:46 2011 (376 seconds ago)
  has history: yes
  has statistics: yes
  battery
    present: yes
    rechargeable: yes
    state: fully-charged
    energy: 59.9955 Wh
    energy-empty: 0 Wh
    energy-full: 59.9955 Wh
    energy-full-design: 59.9955 Wh
    energy-rate: 0.0111 W
    voltage: 12.843 V
    percentage: 100%
    capacity: 99.445%
    technology: lithium-ion

Daemon:
  daemon-version: 0.9.13
  can-suspend: yes
  can-hibernate yes
  on-battery: no
  on-low-battery: no
  lid-is-closed: no
  lid-is-present: yes
  is-docked: no

but

$ ls -la /proc/acpi/battery/
total 0
dr-xr-xr-x 5 root root 0 2011-11-01 09:08 .
dr-xr-xr-x 5 root root 0 2011-10-31 13:42 ..
dr-xr-xr-x 2 root root 0 2011-11-01 09:08 BAT0
dr-xr-xr-x 2 root root 0 2011-11-01 09:08 BAT1
dr-xr-xr-x 2 root root 0 2011-11-01 09:08 BAT2

And GNOME applet sees 3 batteries, two of which at 0%. The system has one physical battery.