Battery
Description Spare part number
6-cell, 59-Whr, 5.4-Ah Li-ion battery 671602-001
Before removing the battery, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn
the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet
and then unplugging the AC adapter from the computer.
4. Remove the base enclosure screws (see 
Base enclosure on page 25).
5. Remove the keyboard (see 
Keyboard on page 26).
6. Remove the top cover (see 
Top cover on page 28).
Remove the battery:
1. Turn the computer right-side up, with the front toward you.
2. Disconnect the battery cable.
3. Remove the 2 Phillips PM 2.0×3.0 screws that secure the battery to the computer (1).
32 Chapter 4   Removal and replacement procedures