2-12 Getting StartedRecharging Battery PrecautionsAdhere to the following precautions when recharging the primary orsecondary battery.! Use only the NEC battery charger designed for your NEC Versabattery type. Different NEC Versa models require different batteriesand battery chargers.! Charge the battery for the specified charge time only.! During charging, keep the environmental temperature between 32°Fand 104°F (0°C to 40°C).! Read the instructions that came with the battery charger beforecharging the battery.Extending Battery LifeWhile on the road, it is important to be aware of the simple things youcan do to extend the life of the system’s main battery. One way is tokeep the brightness setting low. Use the Fn+F8 and Fn+F9 function keysto control the brightness.NEC VersaBay IIIThe NEC VersaBay III Battery Pack provides a optional, secondLithium-Ion (Li-Ion) battery to use in your NEC Versa LX computer.Inserting a second fully charged battery increases battery life toapproximately 4 to 5 hours.Internal BatteriesThe twelve-cell Lithium-Ion (Li-Ion) battery provides the main powersource in your NEC Versa LX computer. See Appendix B for a list ofbattery specifications. In addition to this battery, the CMOS battery andbridge battery also provide system power.