Compaq Armada 4100 Installation And Operation Manual page 32

. . . . . . . . . . . . . . . . . . . . . . . . .
4. Turn the MCD top side up.
5. Slide the modular battery pack or weight saver module into the
Battery Bay until it clicks into place.
Inserting a Modular Battery Pack or Weight Saver Module into the MCD
IMPORTANT: Battery components are considered environmentally
harmful. Disposal of used battery packs should comply with
country, state, province, or local regulations. Refer to the Reference
Guide that comes with your computer for information on recycling
used battery packs.
NOTE: The weight saver module can also be used in the DualBay of
the computer.
Using the Compaq Mobile CD Expansion Unit 3-11