Sony Vaio VPCSA36GG, where is the battery location?

Some case of error in the laptop can be solved by removing the battery for a minute and replace/reconnect it.

Generally location of a notebook/laptop battery is outside, but in  Sony Vaio VPCSA36GG, you can't find it outside the laptop. It is located inside.

To find and open the battery on Sony Vaio VPCSA36GG :

Switch Off the power
Go to Bottom side
Remove the two screws using screw driver

Open the cover 
Now you can see the battery
To open, push on the key ( figure, at 1 ) and pull the battery (figure, at 2)