Comment 0 for bug 1240673

See the following upower dump:

$ upower --dump
Device: /org/freedesktop/UPower/devices/line_power_AC
  native-path: AC
  power supply: yes
  updated: Wed 16 Oct 2013 12:58:28 PM EDT (7198 seconds ago)
  has history: no
  has statistics: no
  line-power
    online: yes

Device: /org/freedesktop/UPower/devices/battery_BAT0
  native-path: BAT0
  vendor: SMP
  model: DELL Y61CV22
  serial: 3840
  power supply: yes
  updated: Wed 16 Oct 2013 12:58:33 PM EDT (7193 seconds ago)
  has history: yes
  has statistics: yes
  battery
    present: yes
    rechargeable: yes
    state: fully-charged
    energy: 66.6 Wh
    energy-empty: 0 Wh
    energy-full: 66.6 Wh
    energy-full-design: 66.6 Wh
    energy-rate: 0.0111 W
    voltage: 12.836 V
    percentage: 0%
    capacity: 76.9167%
    technology: lithium-ion

Device: /org/freedesktop/UPower/devices/battery_BAT2
  native-path: BAT2
  vendor: Samsung SDI
  model: DELL W1GGM26
  serial: 12515
  power supply: yes
  updated: Wed 16 Oct 2013 12:58:33 PM EDT (7193 seconds ago)
  has history: yes
  has statistics: yes
  battery
    present: yes
    rechargeable: yes
    state: fully-charged
    energy: 31.08 Wh
    energy-empty: 0 Wh
    energy-full: 31.08 Wh
    energy-full-design: 31.08 Wh
    energy-rate: 0.0111 W
    voltage: 12.428 V
    percentage: 0%
    capacity: 81.2857%
    technology: lithium-ion

Note that state is fully-charged, but percentage is o% on both batteries. This worked fine on 13.04.
Daemon:
  daemon-version: 0.9.22
  can-suspend: yes
  can-hibernate: no
  on-battery: no
  on-low-battery: no
  lid-is-closed: no
  lid-is-present: yes
  is-docked: no

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: upower 0.9.22-1ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
Uname: Linux 3.11.0-12-generic i686
ApportVersion: 2.12.5-0ubuntu2
Architecture: i386
Date: Wed Oct 16 15:02:33 2013
EcryptfsInUse: Yes
InstallationDate: Installed on 2011-04-04 (925 days ago)
InstallationMedia: Kubuntu 11.04 "Natty Narwhal" - Beta i386 (20110330)
MarkForUpload: True
SourcePackage: upower
UpgradeStatus: Upgraded to saucy on 2013-10-16 (0 days ago)