]> Objects implementing this interface are usually discovered through the org.freedesktop.UPower interface on the /org/freedesktop/UPower object on the D-Bus system bus service with the well-known name org.freedesktop.UPower using the EnumerateDevices method. $ dbus-send --print-reply \ --system \ --dest=org.freedesktop.UPower \ /org/freedesktop/UPower/devices/battery_BAT0 \ org.freedesktop.DBus.Properties.GetAll \ string:org.freedesktop.UPower.Device method return sender=:1.386 -> dest=:1.477 reply_serial=2 array [ dict entry( string "native-path" variant string "/sys/devices/LNXSYSTM:00/device:00/PNP0A08:00/device:01/PNP0C09:00/PNP0C0A:00/power_supply/BAT0" ) dict entry( string "vendor" variant string "SONY" ) dict entry( string "model" variant string "42T4568" ) dict entry( string "serial" variant string "4179" ) dict entry( string "update-time" variant uint64 1226417875 ) dict entry( string "type" variant uint 2 ) dict entry( string "power-supply" variant boolean true ) dict entry( string "has-history" variant boolean true ) dict entry( string "has-statistics" variant boolean true ) dict entry( string "online" variant boolean false ) dict entry( string "energy" variant double 72.85 ) dict entry( string "energy-empty" variant double 0 ) dict entry( string "energy-full" variant double 74.55 ) dict entry( string "energy-full-design" variant double 74.88 ) dict entry( string "energy-rate" variant double 0 ) dict entry( string "voltage" variant double 16.415 ) dict entry( string "time-to-empty" variant int64 0 ) dict entry( string "time-to-full" variant int64 0 ) dict entry( string "percentage" variant double 97.7197 ) dict entry( string "is-present" variant boolean true ) dict entry( string "state" variant uint 3 ) dict entry( string "is-rechargeable" variant boolean true ) dict entry( string "capacity" variant double 100 ) dict entry( string "technology" variant uint 1 ) ] Unless otherwise noted, an empty string or the value 0 in a property on this interface means not set. Refreshes the data collected from the power source. Callers will need to make sure that the daemon was started in debug mode if an error occured while refreshing The type of history. Valid types are rate or charge. The amount of data to return in seconds, or 0 for all. The approximate number of points to return. A higher resolution is more accurate, at the expense of plotting speed. The history data for the power device, if the device supports history. Data is ordered from the earliest in time, to the newest data point. Each element contains the following members: time The time value in seconds from the gettimeofday() method. value The data value, for instance the rate in W or the charge in %. state The state of the device, for instance charging or discharging. Gets history for the power device that is persistent across reboots. The mode for the statistics. Valid types are charging or discharging. The statistics data for the power device. Each element contains the following members: value The value of the percentage point, usually in seconds accuracy The accuracy of the prediction in percent. Gets statistics for the power device that may be interesting to show on a graph in the session. If it is true, the battery charge will be limited to ChargeEndThreshold and start to charge when the battery is lower than ChargeStartThreshold. Moreovere, if ChargeEndThreshold and/or ChargeStartThreshold are not supported, charge limit functionality on the whole may still be supported but the firmware will choose its own thresholds. If it is false, the battery will always be fully charged. Limiting the battery charge to the configured thresholds ChargeStartThreshold and ChargeEndThreshold. if an error occured while setting the battery charge limits OS specific native path of the power source. On Linux this is the sysfs path, for example /sys/devices/LNXSYSTM:00/device:00/PNP0C0A:00/power_supply/BAT0. Is blank if the device is being driven by a user space driver. Name of the vendor of the battery. Name of the model of this battery. Unique serial number of the battery. The point in time (seconds since the Epoch Jan 1, 1970 0:00 UTC) that data was read from the power source. Type of power source. 0Unknown 1Line Power 2Battery 3Ups 4Monitor 5Mouse 6Keyboard 7Pda 8Phone 9Media Player 10Tablet 11Computer 12Gaming Input 13Pen 14Touchpad 15Modem 16Network 17Headset 18Speakers 19Headphones 20Video 21Other Audio 22Remote Control 23Printer 24Scanner 25Camera 26Wearable 27Toy 28Bluetooth Genreic If the value is set to "Battery", you will need to verify that the property power-supply has the value "true" before considering it as a laptop battery. Otherwise it will likely be the battery for a device of an unknown type. If the power device is used to supply the system. This would be set TRUE for laptop batteries and UPS devices, but set FALSE for wireless mice or PDAs. If the power device has history. If the power device has statistics. Whether power is currently being provided through line power. This property is only valid if the property type has the value "line-power". Amount of energy (measured in Wh) currently available in the power source. This property is only valid if the property type has the value "battery". Amount of energy (measured in Wh) in the power source when it's considered to be empty. This property is only valid if the property type has the value "battery". Amount of energy (measured in Wh) in the power source when it's considered full. This property is only valid if the property type has the value "battery". Amount of energy (measured in Wh) the power source is designed to hold when it's considered full. This property is only valid if the property type has the value "battery". Amount of energy being drained from the source, measured in W. If positive, the source is being discharged, if negative it's being charged. This property is only valid if the property type has the value "battery". Voltage in the Cell or being recorded by the meter. The number of charge cycles as defined by the TCO certification, or -1 if that value is unknown or not applicable. Luminosity being recorded by the meter. Number of seconds until the power source is considered empty. Is set to 0 if unknown. This property is only valid if the property type has the value "battery". Number of seconds until the power source is considered full. Is set to 0 if unknown. This property is only valid if the property type has the value "battery". The amount of energy left in the power source expressed as a percentage between 0 and 100. Typically this is the same as (energy - energy-empty) / (energy-full - energy-empty). However, some primitive power sources are capable of only reporting percentages and in this case the energy-* properties will be unset while this property is set. This property is only valid if the property type has the value "battery". The percentage will be an approximation if the battery level is set to something other than None. The percentage is kept for compatibility reasons. The temperature of the device in degrees Celsius. This property is only valid if the property type has the value "battery". If the power source is present in the bay. This field is required as some batteries are hot-removable, for example expensive UPS and most laptop batteries. This property is only valid if the property type has the value "battery". The battery power state. 0Unknown 1Charging 2Discharging 3Empty 4Fully charged 5Pending charge 6Pending discharge This property is only valid if the property type has the value "battery". If the power source is rechargeable. This property is only valid if the property type has the value "battery". The capacity of the power source expressed as a percentage between 0 and 100. The capacity of the battery will reduce with age. A capacity value less than 75% is usually a sign that you should renew your battery. Typically this value is the same as (full-design / full) * 100. However, some primitive power sources are not capable reporting capacity and in this case the capacity property will be unset. This property is only valid if the property type has the value "battery". Technology used in the battery: 0Unknown 1Lithium ion 2Lithium polymer 3Lithium iron phosphate 4Lead acid 5Nickel cadmium 6Nickel metal hydride This property is only valid if the property type has the value "battery". Warning level of the battery: 0Unknown 1None 2Discharging (only for UPSes) 3Low 4Critical 5Action The level of the battery for devices which do not report a percentage but rather a coarse battery level. If the value is None, then the device does not support coarse battery reporting, and the percentage should be used instead. 0Unknown 1None (the battery does not use a coarse level of battery reporting) 3Low 4Critical 6Normal 7High 8Full

An icon name, following the Icon Naming Specification

Note that the icons might not match end-user expectations in terms of presentation relative to the amount of battery left or perceived to be left. It is recommended that front-ends use the BatteryLevel property first, if available, followed by the Percentage, to present a more realistic battery level to the user.

When a start charge threshold is set the battery won't get charged until the charge drops under this threshold.

In general case, ChargeStartThreshold is between 0 and 100. If it is G_MAXUINT, upower will skip to set charge_control_start_threshold.

The end charge threshold stops the battery from getting charged after the set threshold

In general case, ChargeEndThreshold is between 0 and 100. If it is G_MAXUINT, upower will skip to set charge_control_end_threshold.

If battery charge start and end limits are applied.

If setting battery charge limits is supported.