Laptop power management

[kitts]

I recently purchased a laptop and now i am happy with Linux KDE setup exept 
for the battery life.

I get about 2 hrs but expect over 3. Which is the better power management 
tool out there? I have tried the native to kubuntu power management, 
klaptop and kpowersave.

Functionality of kubuntu's power management is flawless but is very limited. 
I liked the flexibily of klaptop and the features of kpowersave and would 
ideally like a combination of them all.

One question along the same lines. I believe there is an amount of 
functionality provided by "HAL". Could anyone here point me to where i can 
getmore information on HAL? I want to know what are the low level power 
anagement fuctionality available there to see if i can write my own 
script /app around them.
-- 
Cheers!
kitts
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