Re: Dell Inspiron i8100 with 2 batteries

[David G Hamblen]

I've got the same laptop with one battery, but I'm using ACPI. None of the
current user-space utilities parse this stuff particularly well (the
filenames in /proc/acpi have changed), but the data all look reasonable.

#cat /proc/acpi/battery/BAT1/*
alarm:                   3000 mWh
present:                 yes
design capacity:         57420 mWh
last full capacity:      57420 mWh
battery technology:      rechargeable
design voltage:          14800 mV
design capacity warning: 3000 mWh
design capacity low:     1000 mWh
capacity granularity 1:  200 mWh
capacity granularity 2:  200 mWh
model number:            LIP8084DLP
serial number:           40086
battery type:            LION
OEM info:                Sony Corp.
present:                 yes
capacity state:          ok
charging state:          charging
present rate:            unknown
remaining capacity:      56670 mWh
present voltage:         16746 mV

Dave

On Fri, 17 May 2002, John Ruttenberg wrote:

> I thought I'd try to figure out that there were two batteries and divide by 2
> or something like that.  Perhaps the bios of this notebook is just broken,
> though.
> 
> Alan Cox:
> > > of the batteries is less than 50% (according to the bios), then /proc/apm
> > > shows the battery power level X 2.  If the combined charge of the batteries is
> > > greater than 50%, then /proc/apm shows:
> > > 
> > >     1.16 1.2 0x03 0x01 0xff 0x10 -1% -1 ?
> > > 
> > > I think this is because the bogus calculation it would make would result in a
> > > percentage > 100.
> > > 
> > > I took a quick look at arch/i386/kernel/apm.c but it wasn't obvious what to
> > > do.
> > 
> > The data basically comes from the BIOS as is
> 
> 
> 
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