User`s guide

Batteries Chapter Five - Power Management
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Chapter Five - Power
Management
Batteries
Your computer comes with a rechargeable battery pack that lets you operate the
computer without an external power source. When the battery pack is fully
charged, you can operate the computer for approximately three to four hours
under the following conditions:
•
The battery pack initially has a full charge.
•
No peripheral devices are installed.
•
The disk/CD-ROM drives run no more than 10 percent of the time
C
AUTION
:
There is a danger of explosion if battery is incorrectly replaced. Replace
only with the same or equivalent type recommended by the manufacturer.
Dispose of used batteries according to the manufacturer’s instructions.
Battery Discharge
It is a good idea to occasionally discharge the battery pack fully to preserve its
operating performance. Repeatedly recharging the battery pack when it has not
discharged completely can decrease the capacity of the battery pack. In the
battery pack there is a GAS-GAUGE IC to record the charge/discharge status of
the battery.
You can also extend the life of the battery pack by using the computer’s power-
saving features.
1. Disconnect the AC adapter from the external power source, then from the
computer.
2. Turn on the computer.
3. Ignore the power failure signals (i.e., battery warning beeps).
4. When the battery is fully discharged (that is, when the computer goes off),
attach an external power source and fully recharge the battery. The battery
charge icon on the Status panel indicates when the battery is fully charged.
Recharging the Battery Pack
The installed battery pack charges automatically any time the computer is
connected to the AC adapter and an external power source. The Li-Ion battery
can be fully charged in about four hours when the computer is turned off.