Funny battery values (nx6325)

[Garrett Cooper]

On Mon, Mar 15, 2010 at 1:12 PM, Joerg Wunsch <j at uriah.heep.sax.de> wrote:
> As Nate Lawson wrote:
>
>> > When unplugging the AC supply, I get:
>> >
>> > State:                  discharging
>> > Remaining capacity:     98%
>> > Remaining time:         0:08
>> > Present rate:           2064 mA
>>                           ^^^^^^^
>> > Voltage:                11870 mV
>
>> > Any clues how to fix these values?
>
>> Fix the query for present rate to not return 2A. Perhaps a problem
>> reading the EC.
>
> I think the 2 A are realistic.  With a 5100 mAh capacity, it should
> result in somewhat more than 2 hours of run time (maybe more if the
> laptop eventually goes idle, and reduces CPU speed).

If you were pulling 2 A, that's be the same approximate amount as many
2 x 1U servers. Nate's right -- something is wrong there (this is
particularly true if you're in Europe because you'd be pulling less
current per device as the voltage is actually 240V RMS based, not 120V
RMS based).

> What isn't realistic though is that the capacity (both, "design
> capacity", as well as "last full capacity") is given as just 279 mAh.
>
> Should I provide any ACPI dump files?
>
> I'm not sure whether there are any ACPI BIOS updates available for
> that computer.  I've always got a hard time finding them on the HP
> website.  They are telling me everything about Windows device drivers,
> Windows 7 upgrades, and other completely uninteresting (to me) items,
> but nothing about BIOS/firmware upgrades.

HTH,
-Garrett