Power Plan Switcher 
Switching between power plans on Windows was never easier.
This nifty little tool runs as a system tray application in the background and allows for a quick switching between power plans that are configured in Windows.
For example, you can configure a power saver plan that reduces the CPU speed to 5% (as can be seen in the gif below) and quickly switch to it whenever you want to save some battery power.
Please note that the main and only purpose of this tool is to switch between plans and not to configure them. This has to be done beforehand in the Power Options menu in Windows.
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License
Copyright © 2016 MouthlessGames
Licensed under the GNU General Public License, Version 3.0. See LICENSE for details.
https://www.gnu.org/licenses/gpl-3.0.txt
The battery icon is from the Tango icon set which is licensed under Public Domain.
http://tango.freedesktop.org/The_People
Crafted with ♥ in 2016.