How to get the correct battery status?

Posted by GUI Junkie on Ask Ubuntu See other posts from Ask Ubuntu or by GUI Junkie
Published on 2012-01-31T21:26:54Z Indexed on 2012/09/07 3:49 UTC
Read the original article Hit count: 278

Filed under:

11.10

|

battery

At this moment, ever since I installed Ubuntu on this machine, the battery status says: not present.

Looking at this answer, however, I find that /proc/acpi/battery/BAT1/info (sometimes its /proc/acpi/battery/BAT0/info, use tab complete to help) has the following info:

present: yes

design capacity: 4400 mAh

last full capacity: 4400 mAh

battery technology: rechargeable

design voltage: 11100 mV

design capacity warning: 300 mAh

design capacity low: 132 mAh

cycle count: 0

capacity granularity 1: 32 mAh

capacity granularity 2: 32 mAh

model number: BAT1

serial number: 11

battery type: 11

OEM info: 11

In accordance to this answer, I've checked the /proc/acpi/battery/BAT1/state file:

present: yes

capacity state: ok

charging state: charged

present rate: unknown

remaining capacity: unknown

present voltage: 10000 mV

The acpi -b command returns:

Battery 0: Unknown, 0%, rate information unavailable

Any suggestions on getting the battery info updated?

© Ask Ubuntu or respective owner

Related posts about 11.10

Upgrade Kubuntu 11.10 to 12.10 I get error code that 11.10 is outdated

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I installed Kubuntu 11.10 on top of Windows 7. Everything works fine. I tried to update 11.10 to 12.10 and I get error Code that 11.10 is outdated and not supported. Update stops. I downloaded 12.10 iso but there is no upgrade option, just install. How can I remove the 11.10 installation and install… >>> More
Intel GMA 500 support for 11.10

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I would like to know if the new open-source video driver included in kernel 3.0.x for the Intel GMA 500 will be included by default in the kernel that will be shipped in OO. The driver support of this GFX chipset has always been poor and mainly community-driven, now finally we have a KMS open-source… >>> More
Error Ubuntu 11.10 despues de instalar [Error after installing Ubuntu 11.10]

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
instale ubuntu 11.10, termino de instalar y no tiene nada, ni aplicaciones, ni esa barrita lateral de unity, no tiene nada, ni si quiera la barra donde aparece la hora; porque? y me aparece un cuadro diciendo que hay un error en el disco y que el fallo es inminente , que es? SMART no entiendo, ayuda Y… >>> More
How to enable 3D acceleration under VMware workstation 8, Ubuntu 11.10 host, Ubuntu 11.10 guest

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I saw there are similar questions, but I don't think they answer exactly my questions. Did anyone managed to get 3D acceleration work under VMWare workstation 8? I have VMware 8.01 installed on Ubuntu 11.10. The guest I am trying is also Ubuntu 11.10. I manually installed vmware-tools and it went… >>> More
The volume "filesystem root" has only 0 bytes disk space remaining?

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I installed 11.10 ~two weeks ago and run into some strange troubles recently. Installation was on brand new laptop with clear 128GB SSD. I opted for encrypting home directory. Apart from that I accepted defaults during the installation. There is no other OS on my laptop. I had circa 40GB in use… >>> More

Related posts about battery

Regardless of battery charge, when unplugged Ubuntu displays critical battery message and hibernates

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Regardless of battery charge, when unplugged Ubuntu displays critical battery message and hibernates. I can only seem to change it to either shutdown or hibernate. This does not happen when using windows 7 on the same computer. Windows 7 gives a good few hours on a full charge indicating that it… >>> More
Ubuntu 12.10 is reading mouse battery as a laptop battery

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have a bluetooth mouse connected to my laptop. Much to my delight (I posted the suggestion!) the mouses battery is now displayed along side the laptop's battery. Unfortunately is is named simply "battery" in the drop down and "Laptop battery" once the power statistics windows is opened. The details… >>> More
The battery indicator& Power setting panel shows wrong battery state

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
My laptop is Thinkpad E420 with Ubuntu 12.04 64-bit installed, the kernel version is 3.2.0-33-generic. I have set the battery threshold as 60% via windows7. It seems that the threshold auto effected in Ubuntu. However, there are some problems of the battery indicator's state. I'll list some information… >>> More
To have a long life with the battery it has to be separated from the Laptop after each use

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
To have a long life with the battery it has to be separated from the Laptop after each use Developing a Laptop and concern about it's battery life Don't be concerned follow this advice how to deal with your Laptop battery. A fresh power supply of your Laptop can be purchased in a very low charge… >>> More
How to Calibrate HP Laptop Battery

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Calibrating the HP Laptop Battery This document pertains to HP Notebook PCs with Windows 7 and Vista. Calibrating the laptop battery Calibrating the battery means recharging the battery to its maximum capacity and resetting the battery gauge to display the level of charge accurately. The Windows… >>> More