First of all my laptop is asus n55sf with ubuntu 13.10.
I've installed bumblebee and it's working quite good (I've tried e.g. optirun firefox and it's working fine).
Right now I have problem with power management. In windows 7 my battery lasted for at least 3 hours and in ubuntu is more or less only 1 hour.
I'm not so advanced ubuntu user, so I need your help. Do I need to change some settings or install some additional software?