Mailinglist Archive: opensuse (2224 mails)

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Re: [opensuse] Battery expecntancy
  • From: John Andersen <jsa@xxxxxxxxxxxxxx>
  • Date: Fri, 2 Feb 2007 01:57:55 -0900
  • Message-id: <200702020157.56006.jsa@xxxxxxxxxxxxxx>
On Thursday 01 February 2007, M Harris wrote:
> On Thursday 01 February 2007 23:21, Mark Panen wrote:
> > I bought
> > a new one on Monday and it is supposed to get up to 4 hours but i only
> > get 1 hour 40 minutes. I have charged and discharged the battery a
> > couple of times.
> The time you are getting is 'bout normal...
>
> ... there are many things you can do to cut back on the current drain.
> 1) reduce the cpu operating frequency (bios) if your unit allows for this
> 2) reduce the up-time of the hd drive motor (timer)
> 3) reduce the brightness of the lcd, and up-time of the monitor (timer)
> 4) turn of peripherals when not used... including wan, wifi, modems, etc
> 5) set a suspend timer
> 6) suspend instead of booting
> 7) set lcd to power down (timer) instead of running a screen saver
>
> You may need to fully cycle (charge-discharge) your new battery several times
> before you will see optimum performance.
>
> I have never had more than 2.5 hours from my laptop (ThinkPad R30) under
> optimal loading. Obviously this is completely subjective.

Noatime in fstab saves a little too, I've been told.



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John Andersen
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