Hello Linux Users.
As you may know, TLP is a popular battery tool. Since Jupiter was interrupted and the latest version does not work well on Ubuntu 13.04 Raring Ringtail, everybody begin to use TLP.
All that TLP does is tweak your system for better power usage / battery life. You can just install TLP and forget about it, because it does his job by itself.
$ sudo apt-get install tp-smapi-dkms smartmontools ethtool acpi-call-tools
To install TLP in Ubuntu 13.04, use the following commands:
$ sudo add-apt-repository ppa:linrunner/tlp
$ sudo apt-get update
$ sudo apt-get install tlp tlp-rdw tp-smapi-dkms smartmontools ethtool
$ sudo tlp start