![](http://pdfasset.owneriq.net/3/2c/32c59f8d-4b0e-41d5-86ab-4257559d7265/32c59f8d-4b0e-41d5-86ab-4257559d7265-bg3d.png)
4. Connect the hard drive cable connector (4).
5. Lower the service door onto the computer (1), and then slide the door (2) toward the battery bay
until the battery/service door latch snaps into place.
6. Replace the battery.
7. Reconnect external power and external devices.
8. Turn on the computer.
Improving performance 51