Battery
Description Spare part number
3-cell, 41-WHr, 3.6-AHr, Li-ion battery 920070-855
Before removing the battery, 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.
4. Remove the optical drive (see Optical drive on page 24).
5. Remove the bottom cover (see Bottom cover on page 25).
Remove the battery:
1. Remove the four Phillips PM2.0×4.5 screws (1) that secure the battery to the keyboard/top cover.
2. Remove the battery (2).
Reverse this procedure to install the battery.
Component replacement procedures 27
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