NEC L320 manual System Batteries, Primary Battery, Secondary Battery, Cmos Battery

System Batteries

Your NEC Versa notebook is equipped with a primary lithium ion battery that helps to prevent data loss. In addition, you can insert an optional secondary lithium ion battery in the NEC Modular Bay slot to give you more on-the-go power.

Primary Battery

The standard lithium ion (Li-Ion) battery provides the main power source in your NEC Versa L320 computer. Your system comes with an 8-cell lithium ion battery that fits into the battery bay on the bottom of your system. See Appendix B for battery specifications. In addition to this battery, the CMOS battery also provides system power.

For information about installing or removing the primary battery, see the section, “Replacing the Battery” later in this chapter. For more information about the primary battery see the section, “Using the Primary Battery.”

Secondary Battery

You can install an optional secondary lithium ion battery in the NEC Modular Bay slot on the right side of your NEC Versa notebook. Attaching a second fully charged battery allows you to work longer while you are away from an AC power source. For more information about the secondary battery, see the section, “Using the Secondary Battery.” For information about installing a secondary battery, see “Installing a Device in the Modular Bay Slot” in Chapter 5 or see the installation instructions that are packaged with the battery.

CMOS Battery

This lithium battery provides battery backup and prevents data loss in the system’s complementary metal oxide semiconductor (CMOS) RAM. This memory area contains information on the system’s configuration, for example, date, time, drives, and memory. The CMOS battery charges when your NEC Versa notebook is connected to AC power. The CMOS battery may discharge completely if the NEC Versa notebook remains unused for approximately two months.

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