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Old 08-05-2006, 10:26 AM   #1 (permalink)
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Default 1 quick question

I checked the IBM website for IBM Thinkpad T30 Notebooks battery and it said it lasts 2.5 hours. and i noticed... its not alot. my dad's Dell latitude laptop can last 7 hours.. 3.5 hours each battery.

IBM takes up more energy? and when its on battery mode everything slows down, screen is not that bright as power mode but my dad's delll... everything is same.....

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Old 08-05-2006, 10:57 AM   #2 (permalink)
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IBMS are better using more power
DELL sucks


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Old 08-05-2006, 11:53 AM   #3 (permalink)
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Originally posted by StylinGolfShoes
IBMS are better using more power
DELL sucks
Do you have anything else to say that might back up your opinion? Opinions are fine, but should be backed up by factual evidence.

Anyways, to answer your question:

The T30 uses a Pentium4-M. P4-Ms use up a lot of energy, which translates into higher drain on the battery. Furthermore, in an effort to conserver battery life, P4-Ms use speedstep to lower the clock speed of the CPU, which would explain why it gets slower at times.

Your dad's Dell probably uses a more energy-efficient design. It may include a Pentium-M CPU which gives: a) More bang per clock cycle meaning lower clock speeds b) Better overall energy usage.

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Old 08-05-2006, 12:00 PM   #4 (permalink)
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basically elbatrop summed it up. the laptop power saving modes should be able to be edited by you to how you would like i.e. screen stays bright and full speed operation. the battery life will be shorter though.

you have to keep in mind that you can't just directly compare two laptops. it's apples and oranges
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