Getting Started
Battery is directly related to CPU. To track which applications have
runaway process / are Broken (Running when it's supposed to),
open up your main application and check which application's CPU Usage is high and end it.
In practice though, it's better to follow a proper procedure to close an application in order to prevent Active Applications.

However, opening the application every time just to check would be inefficient.
You can setup a widget on the Home screen to track Active Applications and click on it for more details.
There are two types of details:
1. Pop Up
2. Main Apps
What you see in this picture is the "Pop up" details, the "Main App" details
will show the full screen app as the picture on top.

Recommended Practice
In order to keep your phone cleaned from Applications that consume battery, it's recommended to put a widget on your screen
and upon seeing Active apps running, click on it to check whether there are application running and end them. However, if you
have purposely put them on stand by, it will still be shown here too since it's doing something so don't end it.
Application Walkthrough
Active Apps Page
This page shows you Active Applications or Applications which have
tasks running and not merely residing in the memory. The update is in
real time with 5 seconds interval.
- Ram - Show Ram Usage
- CPU - CPU % spent in background apps
Default:
Sort Mode: CPU Usage
To change the default sorting mode, you can go to Setting -> Sort Mode.
Functions:
Switch application - Clicking on the application
End One Application - Click on End
End All Application - Click on End All
Package Manager Page
This page shows you all applications that have been installed on your phone.
You can sort the applications by clicking on the small icon.

Default Sort: None
Other Sorts:
- RAM - By ram size
- ABC - By Alphabet
Functions:
Show application details - Click on application
Show Uninstall Page - Click on Uninstall
Sort Applications - Click on 
Ram Manager Page
This page shows you ram usage and functions to clear ram.
Ram Manager is divided into two level.
Level 1 - At this level, it will only release memory from background applications that are not processing anything.
Level 2 - At this level, it will release memory from all applications regardless of whether they are running.
To use the ram manager:
1. Choose the level
2. Press on Clear Memory
Storage Page
Storage page shows you storage information.
Programs - Show the storage for storing programs.
Data - Show the database data
Internal SD - Shows the Internal SD card storage
External SD - Shows the external SD card. This won't be shown if your phone doesn't have a second storage.
Note: In phone with only one storage, the SD card is shown as Internal
SD. However, in Phone with more than one storage, the Internal SD
is referring to the built in.