Comment 24 for bug 1482390

Unfortunately, the BIOS update didn't fix this:

When the AC adapter is connected:

sebastian@bnasws02[0r/0s]:~
$ sudo acpitool -a -b
  Battery #1 : Discharging, 99.11%
  AC adapter : online
sebastian@bnasws02[0r/0s]:~
$ sudo acpitool -B
  Battery #1 : present
    Remaining capacity : 54016 mWh, 99.11%
    Design capacity : 56041 mWh
    Last full capacity : 54502 mWh, 97.25% of design capacity
    Capacity loss : 2.746%
    Present rate : 0 mW
    Charging state : Discharging
    Battery type : Li-ion
    Model number : ASUS

AC adapter is disconnected:

$ sudo acpitool -a -b
  Battery #1 : Discharging, 99.11%, 07:00:11
  AC adapter : off-line
sebastian@bnasws02[0r/0s]:~
$ sudo acpitool -B
  Battery #1 : present
    Remaining capacity : 54016 mWh, 99.11%, 06:22:35
    Design capacity : 56041 mWh
    Last full capacity : 54502 mWh, 97.25% of design capacity
    Capacity loss : 2.746%
    Present rate : 8471 mW
    Charging state : Discharging
    Battery type : Li-ion
    Model number : ASUS

BIOS version info:

$ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
UX305LA.204
07/06/2015