TLP - Advanced Power Management for Linux
What is TLP?
With each release cycle Linux kernel and distributions implement new improvements in power management for laptops. Therefore even plain standard installations can show quite good results.
Additional possibilities to save battery power are easily found on the web with the search engine of your choice. But selecting the right solutions for your particular hardware and linux flavour from the myriad of wikis, blogs and forum is much more difficult and often requires advanced linux knowledge on behalf of the user.