Asus N551J E-Manual page 20

Spring battery lock
The spring battery lock automatically locks the battery pack in
place once it is inserted into the battery slot.
IMPORTANT! This lock should be held in an unlocked position
when removing the battery pack.
Air vents
The air vents allow cool air to enter and warm air to exit the
Notebook PC.
WARNING! Ensure that paper, books, clothing, cables, or other
objects do not block any of the air vents or else overheating may
occur.
Compartment cover
This cover protects the reserved spaces in your Notebook PC
for the removable hard disk drive (HDD) and random-access
memory (RAM) modules.
NOTE: For more details on how to replace or install the HDD
and RAM modules of your Notebook PC, refer to the Chapter 6:
Upgrading your Notebook PC section of this E-Manual.
20 Notebook PC E-Manual