Laptop Mode Tools saves power by spinning down hard drives, and in addition, it can be configured to tweak all sorts of other power-related things.
Sorry for the spelling and phonetic errors in the text.
Owner and main writer of MintGuide.org is not a native English speaker.
There is support for auto turn this mode when the PC is powered by a battery. Also included support for various power management features, such as starting and stopping services, depending on the power mode, automatic falling asleep, if the battery level is very low, setting blanking the screen in the terminal and X11.
Laptop Mode Tools uses the ability of the Linux kernel - Laptop Mode, which can also be used to conserve power on workstations and servers.
Note. Before installing Laptop Mode Tools, you need to remove in order to avoid conflicts packages utility TLP (if it is installed on your system).
sudo tlp stop sudo apt-get remove tlp tlp-rdw
Installation into Linux Mint:
sudo apt-get install laptop-mode-tools
If you could not install, you can add the repository
sudo add-apt-repository ppa:webupd8team/unstable sudo apt-get update sudo apt-get install laptop-mode-tools
or download the .DEB package from HERE
Utility Laptop Mode Tools does not have icon, so run the command in the terminal to open it: