!Take extra precautions to keep a leaking battery away from fire. There is a danger of ignition or explosion.

Precautions for Recharging the Battery

Adhere to the following precautions when recharging the primary or secondary battery.

!Charge the battery for the specified charge time only (8 hours when on, 4.5 hours when off).

!During charging, keep the environmental temperature between 32° F and 104° F (0° C to 40° C).

System Batteries

Your NEC Versa notebook is equipped with a primary Lithium Polymer battery and a secondary Lithium Ion battery to help prevent data loss. Only the secondary battery is removable.

In addition, the CMOS battery also provides system power. See Appendix B for a list of battery specifications.

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.

Optional Battery

Your NEC Versa system allows you to remove and replace the secondary Li-Ion battery with an optional Extra Life Lithium-Ion battery.

2-12 Getting Started

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NEC Versa Series manual System Batteries, Precautions for Recharging the Battery, Cmos Battery, Optional Battery