The default Battery Optimizer that comes with Windows has already
included a lot of necessary settings to get a better battery life from a
portable device but this
Battery Optimizer
is a freeware that brings more on the table to help people fix a common
issue existed in most of Windows powered laptop, the short battery
life.

Unlike many other battery related tools that just help you get better
managing how battery should work when your computer goes to sleep, or
hibernate, Battery Optimizer digs a few inches deeper by telling you how
much minutes of your batter you are going to save by tuning certain
features or services of your laptop off. And you can save these settings
as a profile so that you can easily and quickly switch it over when
needed in the future.
The first thing you need to do once you have it installed on your
computer is to Run Diagnostic from the Diagnostic tab to let the tool to
get know better of your computer system and setup. The diagnostic
process may take quite a few minutes to finish depending on the setup.
It will automatically turn of and off certain hardware like Wi-Fi,
Bluetooth, Infrared, and any external peripherals, as well as adjusting
screen brightness. The optimization is completely based on the result
from this diagnostic process. So it’s important to be patient letting it
run completely.