Maintenance and Service Guide

Battery
Description Spare part number
4-cell, 41-Whr, 2.8-Ah Li-ion battery 919701-850
3-cell, 31-Whr, 2.8-Ah Li-ion battery 919700-850
Before disassembling the computer, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is o 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 rst unplugging the power cord from the AC outlet and then
unplugging the AC adapter from the computer.
To remove the battery:
1. Position the computer upside down on a at surface.
2. Lift the computer a few inches o the surface (1).
3. While holding the computer, slide the battery lock latch (2) to unlock the battery.
4. While pressing on the outside edge of the battery release latch (3), slide the latch (4) to release the
battery, and then remove the battery from the computer (5).
NOTE: The battery release latch automatically returns to its original position.
32 Chapter 5 Removal and replacement procedures for Customer Self-Repair parts