It is a cute widget that you can check the remaining amount of the battery.
Use of widgets is as follows.

"How to Use"
I want to install a widget from one. "Install" button.
Select the "widgets" from the menu that appears when you press and hold the 2. Home screen.
I select the "Battery Status" from the 3. List.
If you want to move the 4. Place, drag and drop and press and hold the widget to be displayed.
I will check the remaining amount of the battery with a number to be 5. Displayed.

※ use of widgets is slightly different depending on the model.

"Notes"
It does not appear in the "all applications" you can install.
Nothing happens when you select a widget that is displayed on the home screen.
Please check the above "how to use".

In addition, this widget also shows the remaining amount of the battery based on information from Android devices as well as the Battery Status widget other.
Typically, content "helicopter faster to suddenly turn off the 50%" and such "cut soon as it becomes 10%" is a matter of Android devices.
Please be notified by mail if the motion and Battery Status widget differs from another.