Run laptop batteries down to the end of the charge for the first month. 
Boot to a DOS diskette and turn off all power saving in the bios.  Once 
this has been done several times your battery will hold a better charge 
and have a longer life.

File system shouldn't have much of a effect on battery life.  Lots of 
RAM will help, the machine will not have to hit swap as much. 

Sam.

Ian Stoner wrote:

>Is there any consensus on what filesystem is best to use on laptops?  Is
>the benefit of journaling worth the cost in battery life?  How much
>battery life does journaling actually cost?
>
>If anyone has general tips about how to squeeze more life out of
>batteries, I'd be happy to hear them.
>
>Thanks,
>Ian
>
>  
>


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