CPU Hog will find processes that hog your CPU, and drain your battery.

+ Pro version has all configuration options enabled.

Its works like this, if it detects that your battery temperature is higher then normal, it will periodicity try to find the process that consume most of your CPU.
If it finds such a process, it will send a notification with the process name and usage.

You can control the battery temperature threshold, in which CPU Hog starts to look for the hogging process.
Note that every device has its normal work temperature, and its important to set this temperature with accordance with your device behavior.

You can also set the usage percentage in which the app will send a notification.
The main screen shows current battery temperature, and usage, this can help you set the values above.