Compaq Armada 7400 Reference Manual page 10

chapter
Before you use your computer for the first time, you will have to
complete some preliminary setup procedures. This chapter
explains how to set up your computer and software, and how to
charge your battery.
1. Tilt the computer to access the battery release latch
2. Slide the battery release latch to eject the battery pack.
3. Pull the battery pack out of the battery bay
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