Re: Battery Life discrepancies
- Similar 'jokes' here (Inspiron 4100, P-III 1.2, bought less than
a month ago) :
It is showing: 95 %, 2:53 minutes while plugged in and fully
Pulling the plug caused a (scary) drop in display's brightness,
and the estimate drops to 2:48 (and the brightness stays lower).
Plug it back in ... and it's right back at 2:53. I haven't yet
followed the behaviour systematically ... like how it breathes
when it is booted on battery. (I am about to actually configure
everything I want in this box only now, had no time yet to play
with it :( )
Based on a few 'hard' uses of the battery (with WinXP) I am pretty
certain that it can overshoot 3 hours (but have not actually tested
--- In linux-dell-laptops@y..., Steve Baldwin <sbaldwin@b...> wrote:
> I currently have my i4100 plugged in. The battery monitor shows
> "Plugged in" with 95% charge. If I unplug it, the monitor shows
> "Running on batteries" but the battery as 100% charged. Any ideas
> Also, if I leave it plugged in, it seems to eventually discharge
> 75%, and then won't actually charge until I unplug it, and then
plug it in
> It also only shows (at best) about 2hrs48min of battery life. I
> tested it, but expected 3+ hours.
> Is this normal behaviour, or symptoms of a dodgy battery or
- Try doing a suspend to ram (Fn-Esc), and leaving the machine connected to
mains power overnight. Check what the power meter shows in the morning when
you switch on. I think that's where I'm loosing power.
> Pulling the plug caused a (scary) drop in display's brightness,That "scary" drop in display's brightness you've experienced should be
> and the estimate drops to 2:48 (and the brightness stays lower).
caused by your BIOS settings (I can change this on my Inspiron 8100, I
suppose you can do the same).
- On Tue, 01 Jan 2002 06:27:15 -0000, you wrote:
>Pulling the plug caused a (scary) drop in display's brightness,It's set up to do that -- it's a power-saving feature, to make the battery
>and the estimate drops to 2:48 (and the brightness stays lower).
last longer. You can change it in the BIOS, if you want, but you'll pay on
- Thanks for your repsonses !
I assumed that it is a way to manage the battery ... the point
is that in WinXP this does *not* happen (sorry I did not make this
clear). If it is still BIOS then WinXP must be doing something very
... 'specific' (since it maintains the brightness) ?
I am not really very worried about it, have more immediate concerns
("LinkSys Etherfast" card's modem, mounting the CD-RW), but still
wanted to clarify the statement for other people who may be reading
this. (I have not tried to change this in BIOS though ...)
It is most likely possible to change this behaviour, it looks like
that arguments (to apmd) "change power" or "change battery" affect
this (at the moment ... I consider the battery functional)
Regarding the original posting: I consistently get 5 min difference
in estimates when it runs on battery or on external power (with
battery it shows 5 min less). This could have something to do with
the above mentioned apmd's features ?
--- In linux-dell-laptops@y..., jacquesclouseau@y... wrote:
> On Tue, 01 Jan 2002 06:27:15 -0000, you wrote:
> >Pulling the plug caused a (scary) drop in display's brightness,
> >and the estimate drops to 2:48 (and the brightness stays lower).
> It's set up to do that -- it's a power-saving feature, to make the
> last longer. You can change it in the BIOS, if you want, but
you'll pay on
> battery life.