HP Compaq NX5000 Startup Manual page 6

Hardware and Software Setup
To set up the notebook:
1. Insert a battery pack by turning the notebook upside down,
then sliding the battery pack into the battery bay until it is
seated.
✎
If you will not be using the notebook for 2 weeks or more,
removing the battery and storing it will prolong its life. For more
information, refer to the "Battery Packs" chapter in the Hardware
Guide on the Documentation CD.
1–2 Startup Guide