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 Post subject: Laptop battery runtime
PostPosted: Mon Sep 10, 2007 6:00 pm 
Team Member Top 500
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Location: Building my 4-8-9
How should I accurately measure it? I mean is there software that will do this for you? A stopwatch comes to mind but I could forget to stop/start it and that would ruin it. I need something that doesn't reset when the system goes to sleep (because I do that alot).

I got my new battery from Dell and it's a lot better than my old one...I want a quantity of "maximum battery life with normal use."


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PostPosted: Mon Sep 10, 2007 7:36 pm 
Clawhammer
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My thinkpad has a battery rundown option in the Bios, see if there is something similar although I doubt it.

It would just cycle whatever you wanted it to (screen, cpu, hdd, ram, optical etc.) until the machine lost all power. You'll probably be stuck with a bootable cd of some kind.. Let me think..


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 Post subject: Re: Laptop battery runtime
PostPosted: Mon Sep 10, 2007 8:26 pm 
King of All Voodoo2 Cards
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Sovereign wrote:
How should I accurately measure it? I mean is there software that will do this for you?


Go into the BIOS and shut off all power saving options, then during the POST hit the pause button, and then hit the stopwatch.


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PostPosted: Tue Sep 11, 2007 12:49 pm 
Willamette
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It also depends which parts on your laptop is on, and your screen brightness.


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PostPosted: Thu Sep 13, 2007 12:21 pm 
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Someone told me about "system uptime" monitors. Is there such a tool? I can "shut down" my laptop in preparation for measurement (I usually put it to sleep) the previous night, then run the battery until it dies. That assumes, of course, that the "sleep" in between doesn't count as "shut down" as far as the uptime tool is concerned...


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 Post subject:
PostPosted: Sat Sep 15, 2007 5:18 pm 
Sharptooth
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I have never used it but this application looks like it may be what you are looking for:

http://www.passmark.com/products/batmon.htm


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