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#1 2013-09-02 12:50:35

Modeler
Member
From: United Kingdom
Registered: 2011-07-28
Posts: 70

[Solved] Tool for reporting battery stats?

Hi,

When running on a laptop, the MATE desktop's power applet provides a page of extended stats for the battery. This includes the power drain rate, battery capacity when full (designed and actual) among other interesting stats. I don't get anything like this level of detail in GNOME 3 or LXDE and only see a subset of it in XFCE.

Does anyone know of a generic tool (preferably command line) to query the battery? lshw doesn't appear to refer to the battery at all. I found that if I poke around in /sys/class/power_supply/BAT0 most of the information is there but I couldn't find the current drain in watts.

Thanks.

Last edited by Modeler (2013-09-09 14:20:51)


Wirth's law: "Software is getting slower more rapidly than hardware becomes faster"

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#2 2013-09-02 13:08:00

Lekensteyn
Member
From: Netherlands
Registered: 2012-06-19
Posts: 192
Website

Re: [Solved] Tool for reporting battery stats?

Try upower.

# list paths for available devices
upower -e

# list information for one device
upower -i /org/freedesktop/UPower/devices/battery_BAT0

# dump information for all devices
upower -d

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#3 2013-09-09 14:21:52

Modeler
Member
From: United Kingdom
Registered: 2011-07-28
Posts: 70

Re: [Solved] Tool for reporting battery stats?

Nice!

[root@ThinkPad-T60p ~]# upower -i /org/freedesktop/UPower/devices/battery_BAT0
  native-path:          /sys/devices/LNXSYSTM:00/device:00/PNP0A08:00/device:01/PNP0C09:00/PNP0C0A:00/power_supply/BAT0
  vendor:               Panasonic
  model:                92P1139
  serial:               5445
  power supply:         yes
  updated:              Mon Sep  9 10:23:06 2013 (21413 seconds ago)
  has history:          yes
  has statistics:       yes
  battery
    present:             yes
    rechargeable:        yes
    state:               fully-charged
    energy:              55.36 Wh
    energy-empty:        0 Wh
    energy-full:         55.36 Wh
    energy-full-design:  56.16 Wh
    energy-rate:         0 W
    voltage:             12.487 V
    percentage:          100%
    capacity:            98.5755%
    technology:          lithium-ion

Thanks Lekensteyn, just what I was looking for.


Wirth's law: "Software is getting slower more rapidly than hardware becomes faster"

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