command to check battery life

[Lovell Mcilwain]

Is there a way I can type a command and see how much battery life I have?

My battery meter shows 0% even though I can unplug it and have the battery working with no problem. 
  I just don't have a way to fix this problem so I want to know how I can check the battery level 
when I unplug it.

[wwp]

Hello Lovell,

On Sat, 29 Oct 2005 02:02:20 -0400 Lovell Mcilwain  wrote:
> Is there a way I can type a command and see how much battery life I have?
>
> My battery meter shows 0% even though I can unplug it and have the battery
> working with no problem. I just don't have a way to fix this problem so I
> want to know how I can check the battery level when I unplug it.

Rough: cat /proc/acpi/battery/BAT0/state

If nothing appears, your kernel (acpi part) might lack support for your
hardware.

Some acpi tools may show battery info from command-line :-) (ask
http://freshmeat/ for instance).

Regards,

[Michael A. Peters]

On Sat, 2005-10-29 at 08:50 +0200, wwp wrote:
> Rough: cat /proc/acpi/battery/BAT0/state
>
> If nothing appears, your kernel (acpi part) might lack support for your
> hardware.

or on older laptops (like mine) -

cat /proc/apm

which produces:

1.16ac 1.2 0x03 0x01 0x00 0x01 97% -1 ?

The 97% is the battery charge.