This is a good start http://linrunner.de/en/tlp/docs/tlp-faq.html http://linrunner.de/en/tlp/docs/tlp-faq.html Depending on your HW/distro/DE, you might want to

This is a good start http://linrunner.de/en/tlp/docs/tlp-faq.html http://linrunner.de/en/tlp/docs/tlp-faq.html Depending on your HW/distro/DE, you might want to start playing around with powertop --calibrate and TLP. Highly suggest switching to a lightweight DE like i3.