$ hal-device bme
udi = '/org/freedesktop/Hal/devices/bme'
  info.addons = { 'hald-addon-bme' } (string list)
  battery.type = 'pda'  (string)
  battery.voltage.design = 4200  (0x1068)  (int)
  battery.voltage.unit = 'mV'  (string)
  battery.reporting.design = 1403  (0x57b)  (int)
  battery.reporting.unit = 'mAh'  (string)
  info.product = 'Battery (BME-HAL)'  (string)
  info.udi = '/org/freedesktop/Hal/devices/bme'  (string)
  info.subsystem = 'unknown'  (string)
  battery.present = true  (bool)
  battery.charge_level.design = 8  (0x8)  (int)
  battery.charge_level.current = 4  (0x4)  (int)
  battery.charge_level.percentage = 35  (0x23)  (int)
  maemo.charger.connection_status = 'disconnected'  (string)
  maemo.charger.type = 'none'  (string)
  battery.charge_level.last_full = 0  (0x0)  (int)
  maemo.rechargeable.charging_status = 'off'  (string)
  maemo.rechargeable.positive_rate = false  (bool)
  battery.charge_level.unit = 'bars'  (string)
  battery.rechargeable.is_charging = false  (bool)
  battery.rechargeable.is_discharging = true  (bool)
  info.category = 'battery'  (string)
  battery.reporting.last_full = 0  (0x0)  (int)
  battery.remaining_time.calculate_per_time = false  (bool)
  info.parent = '/org/freedesktop/Hal/devices/computer'  (string)
  battery.reporting.current = 501  (0x1f5)  (int)
  battery.remaining_time = 7200  (0x1c20)  (int)
  battery.charge_level.capacity_state = 'ok'  (string)
  battery.voltage.current = 3880  (0xf28)  (int)
  info.capabilities = { 'battery' } (string list)
  battery.is_rechargeable = true  (bool)