[ltp] poll: how is your battery? (9-cell-battery lost about 25% capacity in 10 months)

[David Tansey]

figured it out.=20

/proc/acpi/battery/BAT0/info has it

it says design capacity: 61920
last full capacity: 40630.=20

i'm only at 75% battery though. i assume that doesn't matter.

which is too bad. it's sad that it's lost 1/3 of its capacity since i
got it ~1 year ago.

On 7/11/05, David Tansey <djtansey@gmail.com> wrote:
> that'd be nice if i had windows... any way to do it in linux?
>=20
> -david
>=20
> On 7/11/05, Kelvin KAN <kelvin@sgi.com> wrote:
> > We don't "test" the battery capacities.  They are reported by (Windows)
> > Thinkpad Config - Battery Maximizer Wizard.
> >
> >
> > David Tansey wrote:
> >
> > >how do you test this? i'd like to know what my x40's 8-cell holds.
> > >
> > >On 7/11/05, Kelvin KAN <kelvin@sgi.com> wrote:
> > >
> > >>My T42, bought 2005/1, now 30 charging cycles:
> > >>
> > >>design capacity:         47520 mWh
> > >>last full capacity:      45000 mWh
> > >>
> > >>i.e. loss of more than 5% in 7 months, even when I have been always
> > >>taking out the battery in office/home environments.
> > >>
> > >>Yes, compared with my previous TP600E, I think T42 is much worse.
> > >>
> > >>
> > >>-
> > >>kelvin.
> > >>
> > >>
> > >>honey@gneek.com wrote:
> > >>
> > >>
> > >>>On Mon, 11 Jul 2005, Fionn Behrens wrote:
> > >>>
> > >>>
> > >>>>What would you say, is a loss of 25%-30% in 10 months really accept=
able
> > >>>>for a quality battery? What are your own experiences?
> > >>>>
> > >>>
> > >>>I'd tend to agree - my IBM battery experience is certainly worse tha=
n
> > >>>my Dell experience (just about everything else has been better).  My
> > >>>6-cell T40 battery is I guess about 15 months old:
> > >>>
> > >>>design capacity:         47520 mWh
> > >>>last full capacity:      18450 mWh
> > >>>
> > >>>Lasts about 30 minutes or less now.  I don't see that there's much
> > >>>you can do except write off IBM as using a poor-quality battery
> > >>>supplier?  And cost replacements into the running cost of IBM laptop=
s.
> > >>>I incidentally never bother taking my battery out - the heat from my
> > >>>CPU/motherboard never seems to reach the battery when I feel for it,
> > >>>and it always feels quite cool.  Taking it out would seem to me to
> > >>>really unbalance the laptop.
> > >>>
> > >>>Must test my 9-cell battery soon.
> > >>>
> > >>>Honey
> > >>>
> > >>--
> > >>The linux-thinkpad mailing list home page is at:
> > >>http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad
> > >>
> > >>
> > --
> > The linux-thinkpad mailing list home page is at:
> > http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad
> >
>