NEC Versa L320, Руководство пользователя

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2-6 Getting Started
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.