HP OmniBook 4100 Reference Manual page 55

Managing Battery Power
Monitoring Battery Power
5. Grasp the underside of the battery firmly and pull out.
6. With the latch in the open position, slide the charged battery into the OmniBook
until it is flush with the unit.
7. Close the battery bay release latch.
The battery module fits into either the module bay or the battery bay.
Hint
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