NEC Versa Series - Manual (Page 29)

Getting Started 2-9
Replace the secondary battery installed in your NEC Versa notebook system as follows.
Note Use the batteries in the NEC Versa notebook computer for which they are
designed. Installing another manufacturer’s battery, or using a combination of very old
and new batteries can deteriorate battery and equipment performance.
1. Save your files, exit Windows and turn off system power.
2. Close the LCD panel and turn over the system.
3. Slide the battery release latch toward the right side of the system and hold firmly.
Locating the battery bay release latch
A – Battery Release Latch