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optiluca
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PostPosted: Sat Jun 09, 2007 2:55 pm    Post subject: Something's wrong with my laptop's battery??? Reply with quote

Hi. I am following the Gentoo Power Management Guide to improve the battery life on my laptop (HP Pavilion dv9097ea). After having successfully configured all the different programs involved, I read the FAQ and ran the following command:
Code:
grep capacity /proc/acpi/battery/BAT0/info
to check my battery's health. This is what I get:
Code:
grep capacity /proc/acpi/battery/BAT0/info
design capacity:         6000 mAh
last full capacity:      3072 mAh
The difference between the two values is extremely high. My battery lasts for approximately 1.5 hours. Is there the possibility that my battery is damaged in any way or is this just a false positive??

Thanks in advance

Luca
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derverstand
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PostPosted: Sat Jun 09, 2007 3:14 pm    Post subject: Reply with quote

Could be damaged. Most of the cases due to intensive use or heat.
/BR
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barophobia
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PostPosted: Sat Jun 09, 2007 4:18 pm    Post subject: Reply with quote

battery quality degrades with use so it is kind of expected.
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bawigga
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PostPosted: Sat Jun 09, 2007 4:33 pm    Post subject: Reply with quote

how old is your laptop battery?
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optiluca
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PostPosted: Sat Jun 09, 2007 4:35 pm    Post subject: Reply with quote

6 months. Is this level of degradation normal??
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# "I don't know why. It's about 80 degrees in here!"

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bawigga
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PostPosted: Sat Jun 09, 2007 4:40 pm    Post subject: Reply with quote

no, not in my experiences anyway, unless you have a large amount of uptime and system load then maybe. It could be just a false positive, but you said you only get about 1.5 hours out of it?

its an HP dv9xxx series meaning it has a 17" screen? with an nvidia 7600go card? that could be sucking a lot of juice out of your battery...

With my HP I got the big battery, which could be an option for you, it makes your laptop sit at an angle, but it's REALLY nice after a few days of getting used to it.
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optiluca
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PostPosted: Sat Jun 09, 2007 6:30 pm    Post subject: Reply with quote

That's exactly my laptop... I contacted HP and they told me 2 use some utility of theirs to check the battery... I'll see if I manage to get one with the warranty.
Maybe the fact I compile quite a bit, run beryl and have the screen at full brightness doesn't help... I'll see how long the battery lasts after setting up power management...

Thanks for your help

Luca
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# "Hmm, sounds like your system froze up."
# "I don't know why. It's about 80 degrees in here!"

http://www.rinkworks.com/stupid/cs_mincing.shtml
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bawigga
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PostPosted: Sun Jun 10, 2007 6:50 pm    Post subject: Reply with quote

You're not by any chance the same luca from openlaptops forums are you?
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optiluca
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PostPosted: Sun Jun 10, 2007 7:11 pm    Post subject: Reply with quote

lol. erm... Don't think so...
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# "I don't know why. It's about 80 degrees in here!"

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