Sharp PC-AV18 Series Operation Manual page 50

3. Unlock the battery stopper of your computer to the left and hold it; then, unlock
the battery release lever of the battery pack to the left and hold it; then, pull out
the battery pack.
Battery Stopper
4. Insert a new battery pack into your computer by matching the projected parts of
the battery with the notched parts on your computer.
5. Press down the battery pack until you hear the clicking sound.
6. Turn your computer over.
Battery Release Lever
Projected Part
Notched Part
3
3-5