02-17-2012 02:55 PM - edited 02-17-2012 02:56 PM
I have read that many people get good life on battery. With the 6 cell, I get 2h using light web browsing at most, and using the 9 cell 3 at most.
Does anyone else get terrible battery life, or is it just me?
Could it be the 1080p display eating the battery? I have found I cant use it on anything less than full brighness, which means using things like the maxum battery power settings are useless as it more or less blacks out the screen and you cant work.
I had a LOT of problems with CPU being stuck at 2.2 GHz on battery with an idle machine, but this appears to be solved by recent BIOS updates. Using CPU-Z I can see that the cores speed is mostly 800MHz on battery.
I have not found a way to disable bluetooth, but have set everything else to sleep.
02-17-2012 05:49 PM - edited 02-17-2012 05:53 PM
I can get 6-8 on my 9-cell on normal (light usage) conditions (80% full charge).
I can get 5-7 on full brightness, and I have almost the same config as you, except with 6GB of RAM.
Are you running Windows?
02-17-2012 06:47 PM
02-18-2012 08:41 AM - edited 02-18-2012 10:51 AM
Yes, the factory installed Win 7 64Bit.
I guess I am one of the unlucky ones who has a bad machine. Im gutted. I dont know if the fact that the batter drains around 8% per 24h when the machine is shutdown is related.
02-18-2012 08:54 AM
02-18-2012 09:25 AM
Can you guys monitor the wattage reported in Power Manager?
The lowest I can get here in minimum brightness and not doing anything is around 9W. That leads to a reported battery life of 6-7h, not even close to the 9h reported in reviews...
02-18-2012 09:39 AM
Doing nothing, The lowest it seems to go on battery is 17W, but jumps to 22+ watts if I do as much as type.t
This is with screen bright,
system performance balanced
cpu deep sleep enabled.
fan control balance all params
auto optical off enabled.
02-18-2012 09:41 AM