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Battery
Description Spare part number
4-cell, 52WHr 3.55AH Li-ion battery 681949-001
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 display panel (see
Display panel on page 31).
5. Remove the base enclosure (see
Base enclosure on page 33).
Remove the battery:
1. Turn the computer right-side up, with the front toward you.
2. Disconnect the battery cable.
3. Move the battery cable to the side (1), and then remove the 3 Phillips PM 2.5×4.2 screws (2) that
secure the battery to the top cover.
Component replacement procedures 35