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Best OS for battery life?

10289 Views 55 Replies 26 Participants Last post by  Willage
Hi, I am trying to get as much battery life as I can from my notebook.

It is an ASUS X83VB-X2, and I currently get ~4-4.5 hours from it (which is not bad considering it is a full sized notebook running Windows 7 x64 RTM).

Anyways, to get this battery life, I have the screen at minimum brightness, and light web surfing on Firefox 3.6 b4/Google Chrome 4.0. I also have a program that turns Aero on and off automatically on battery and AC.

On battery, I do not do anything CPU intensive, just web surfing and word processing with some flash videos (very rarely though).

Wondering what is the best OS I can stick on it for battery life. I would like to reach 5 hours minimum from the current 4-4.5 hours (this is tested, after a little more than an hour of use I have 75% battery life from constant light use).

My laptop is running off a 4-cell battery, and I cannot find any sort of extended battery for the laptop on the internet. Am I pretty much at the max battery life for my laptop, or can I get some more time from it with another OS?

I have already tried Ubuntu 9.10 x64, and get slightly worse battery life from it (~15-30 minutes less).

EDIT: Specs for the laptop is:

T6400
4GB DDR2 RAM
250GB HDD
9300M GS
14.1" screen
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I have heard that Windows 7 is the best. You could try underclocking. Especially if you have a dedicated GPU.
Windows 7. Just make sure your notebook manufacturer has all their software/drivers optimized for W7 to get the best battery life.
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Originally Posted by usapatriot View Post
Windows 7. Just make sure your notebook manufacturer has all their software/drivers optimized for W7 to get the best battery life.
Already running Windows 7 64 bit RTM.
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Originally Posted by CryWin View Post
I have heard that Windows 7 is the best. You could try underclocking. Especially if you have a dedicated GPU.
Will try the underclocking of the graphics card with Rivatuner in a couple hours (gotta go to work now).

Any way to have Rivatuner change the graphics card clocks on battery and AC? My current power plan is to have everything minimal on battery, and powered up on AC.

Anyways, continue the posts, and I will check them later.
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yah there isnt anything better
windows 7 is the best for notebooks
Quote:

Originally Posted by xxicrimsonixx View Post
Already running Windows 7 64 bit RTM.
Do you have all the latest drivers/software from Asus? I know with a clean install and no drivers/software from Lenovo my T400 pulled only about 3-3.5hrs will the 6-cell, now after all the updated drivers/software/BIOS update it pulls 4.5-5hrs with the 6-cell.
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Quote:

Originally Posted by usapatriot View Post
Do you have all the latest drivers/software from Asus? I know with a clean install and no drivers/software from Lenovo my T400 pulled only about 3-3.5hrs will the 6-cell, now after all the updated drivers/software/BIOS update it pulls 4.5-5hrs with the 6-cell.
Running the latest Windows drivers. (got from Windows update).

EDIT: The ones on the ASUS website are for Vista 64 bit, so they might have some missing tweaks. Also, the ones on the website are older drivers, and the ones I have currently installed are more recent. ASUS technically does not have Windows 7 support for this laptop.

However, looking in my device manager, I do see that there are some missing drivers, but I am not sure what they can be for, as everything is working properly on the laptop.
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Remember to turn off Aero, as well as background services that you don't need
apparently windows 7 gives a 7-15% boost in battery life IIRC
purely in terms of battery?

XP. i lost an hour (now 2) from going from XP to 7. but then the manufacturer has not issued proper battery controlling software like they did for XP...
My experience is that, after installing Linux of any flavor, my battery life goes up by a noticeable amount if I keep brightness down and downclock my CPU. On a $500 notebook [1.9 AMD dual core, 1gb ram] I went from ~2.5 hours to almost 4. If your just poking around, its worth a shot.
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If you know to to tweak linux then it is the best for sure. You can just not install anything but what you need. This does take some knowledge and skill. I have no clue about windows though. I tried installing windows 7 on my laptop and my batter life dropped to 6.3 hours. After seeing that i went straight back to linux and my 7.6+ hours.
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Quote:

Originally Posted by Dethredic View Post
If you know to to tweak linux then it is the best for sure. You can just not install anything but what you need. This does take some knowledge and skill. I have no clue about windows though. I tried installing windows 7 on my laptop and my batter life dropped to 6.3 hours. After seeing that i went straight back to linux and my 7.6+ hours.
Hmmm, so Arch Linux with some XFCE?
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you're already pushing the battery life to the max... the only way would be to 1.) use an external battery or 2.) open that battery pack up and replace the cells with higher capacity cells... and 3.) under-clocking but the power management should get you down pretty low without needing to stay there all the time

do you have a model number for you battery pack as i can't seem to find anything from the laptops model number
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Quote:

Originally Posted by LiNERROR View Post
you're already pushing the battery life to the max... the only way would be to 1.) use an external battery or 2.) open that battery pack up and replace the cells with higher capacity cells... and 3.) under-clocking but the power management should get you down pretty low without needing to stay there all the time

do you have a model number for you battery pack as i can't seem to find anything from the laptops model number
Model number for the battery pack is: A32-A8
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On a side note, any one know of a way to get rid of hiccups? I have had them for a little more than 6 hours now
*cry*
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Turn off will last longer. Seriously you are down to OS for batt life? That is extreme to say the least. Also battery tip, don't buy Asus.

Edit: Hicups, plug your ears and nose close mouth swallow/gulp three times.
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Quote:

Originally Posted by UndertheGun View Post
Turn off will last longer. Seriously you are down to OS for batt life? That is extreme to say the least. Also battery tip, don't buy Asus.
Yes, I am extreme on battery life. I don't like my netbook cause it is too small, and ended up getting a full sized notebook for school. Depending on where I sit in the lecture halls, I do have access to an outlet, but I don't like that they are off to the side, thus I would like as much battery life as possible out of my battery (I would consider swapping the battery for an extended life battery, but I cannot find any for my laptop).

Also, what is wrong with ASUS for battery life? I am getting 4-4.5 hours out of a 4-cell battery
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W7 is a better idea than Vista/XP
my laptop got ~10-20% better battery life on W7 (prebetas) than Vista (both X64)
so dont concider either of those 2
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