User's Manual
Managing Power 3-3
Battery Pack
The battery pack is the internal power source for the computer. It is
rechargeable using the AC adapter.
The operating time of a fully charged battery pack depends on how you
are using the computer. When your applications often access peripherals,
you will experience a shorter operating time.
NOTE: Care and maintenance information for the battery is provided in the
“Battery Pack Guidelines” section in Chapter 7.
Charging the Battery Pack
NOTE:
Charging will not start if the battery’s temperature is below 2 C (28 F) or
above 45 C (113F); the charging process will stop if the battery’s
temperature gets above 60 C (140 F). To avoid damaging the battery under
this situation, disconnect the AC adapter and wait for the battery to return to
room temperature before charging again.
During charging, do not disconnect the AC adapter before the battery has
been fully charged; otherwise you will get a prematurely charged battery.
To charge the battery pack, connect the AC adapter to the computer
and an electrical outlet. The Battery Charge Indicator (
) on the
computer glows amber to indicate that charging is in progress. You are
advised to keep the computer power off while the battery is being
charged. When the battery is fully charged, the Battery Charge Indicator
lights green.
CAUTION: After the computer has been fully recharged, do not immediately
disconnect and reconnect the AC adapter to charge it again. Doing so may
damage the battery.
NOTE: The battery level may automatically lessen due to the self-discharge
process (0.21 % per day), even when the battery pack is fully charged (100 %).
This happens no matter if the battery pack is installed in the computer.