The Arch Wiki[1] has some good docs on power management, it's an interesting read even if you're not using Arch. The short of it though is as you suggest, even

The Arch Wiki[1] has some good docs on power management, it's an interesting read even if you're not using Arch. The short of it though is as you suggest, even just installing TLP makes a monumental improvement to battery life. [1]: https://wiki.archlinux.org/index.php/Power_management https://wiki.archlinux.org/index.php/Power_management