Stage 11 (optional) ..Extending battery life by installing the TLP power management application
This is an optional install, but I recommend it for the Acer Aspire One, as when you switch from mains power to battery power, TLP will switch your CPU into power saving mode unless the CPU is under load, which will make your battery last longer.
Open a terminal and run:
sudo add-apt-repository ppa:linrunner/tlp
sudo apt-get update
sudo apt-get install tlp tlp-rdw smartmontools ethtool
then start tlp with:
sudo tlp start
and check it's running with:
sudo tlp-stat | grep "TLP power save"
As long as (after a reboot) that last command still returns:-TLP power save = enabled
you're good to go.
It might now be a good idea to go to -menu > System Tools > Software Updater
and see if it offers you any updates to install
Then that's it, you're done with this tutorial .. pat yourself on the back and enjoy Peppermint Four