Asus F74 - Manual (Page 61)

61 Notebook PC User’s Manual
V
. Using
AC Power System
The Notebook PC power is comprised of two parts, the AC Adapter and the battery power system. The AC Adapter
converts AC power from a wall outlet to the DC power required by the Notebook PC. The battery pack consists of a set
of Lithium-Ion (Li-Ion) battery cells or Nickel-Metal Hydride (NiMH) housed together. There is one battery pack
inserted in the Notebook PC. The AC Adapter’s primary function is to provide power to the Notebook PC which also
charges the battery pack. When the Adapter is connected to the Notebook PC, it provides power as long as it is plugged
into an electrical wall outlet.
Battery Power System
The Notebook PC is designed to work with a removable battery pack located inside the battery pack compartment. A
fully charged pack will provide several hours of battery life, which can be further extended by using power management
features through the BIOS setup. The battery system implements the Smart Battery standard under the Windows envi-
ronment, which allows the battery to accurately report on the amount of usable time and charge percentage left in the
battery before recharging is required. Additional battery packs are optional and can be purchased separately through
your authorized dealers. Before using the Notebook PC on battery power for the first time, check the battery icon in the
Windows task bar to make sure that the battery is fully charged. Charging the battery takes a few hours when the power
is OFF. Always charge completely to reduce the “Memory Effect” or officially called “Voltage Depressor,” if you use
the Ni-MH battery pack. The Li-Ion battery pack does not have the “Memory Effect.”