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
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11.10

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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?

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