NEC Versa Series - Manual (Page 32)

2-12 Getting Started
! 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.