Sony VPCEH1FGX - Manual (Page 134)

4. Slide the battery pack diagonally to take out from your VAIO computer.
Note
You will lose all unsaved data if you remove the battery pack while your VAIO computer
is on or in Sleep mode and not connected to the AC adapter.
Be sure to turn off the computer before removing the battery pack.
Related Topic
Charging the Battery Pack
Notes on Using the Battery Pack
Shutting Down Your VAIO Computer
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