docs: def check_battery(self):
          """
          Implement how we will check battery condition. Now it just trying to check standard battery
          in /sys
          """
          self.charging = False if \
              subprocess.getoutput("cat /sys/class/power_supply/BAT0/status") == 'Discharging' \
              else True
          percent = subprocess.getoutput("cat /sys/class/power_supply/BAT0/capacity")
          if not self.charging:
              for val in self.dischlist:
                  if int(percent) <= int(val):
                      self.indicator.set_icon(self.dischformat.format(value=val))
                      break
          else:
              for val in self.chlist:
                  if int(percent) <= int(val):
                      self.indicator.set_icon(self.chformat.format(value=val))
                      break
          return True