xavier@midkemia / $ upower -i /org/freedesktop/UPower/devices/battery_BAT0
  native-path:          BAT0
  vendor:               CJOYIN
  model:                Y91
  serial:               123456
  power supply:         yes
  updated:              Sat 20 Jan 2018 07:50:29 AM CET (0 seconds ago)
  has history:          yes
  has statistics:       yes
  battery
    present:             yes
    rechargeable:        yes
    state:               discharging
    warning-level:       none
    energy:              106.963 Wh
    energy-empty:        0 Wh
    energy-full:         107.827 Wh
    energy-full-design:  107.827 Wh
    energy-rate:         7.15034 W
    voltage:             16.397 V
    time to empty:       15.0 hours
    percentage:          99%
    capacity:            100%
    technology:          lithium-ion
    icon-name:          'battery-full-symbolic'
  History (rate):
    1516431029	7.150	unknown
    1516430967	12.008	discharging