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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
NOTES:
Charging will not start if the battery pack’s temperature is or above 60 °C (140 °F).
The charging process will stop and the Battery Charge Indicator flashes amber and
green alternatively when the battery’s temperature gets above 60 °C (140 °F). If
this happens, the battery pack may be damaged. Please contact your dealer.
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 glows green.
It takes approximately 150 minutes (2.5 hours) to charge the battery pack
when the computer is off, and 350 minutes (5.8 hours) to fully charge the
battery pack when the computer is on, as well as when the battery pack’s
temperature gets above 45 °C (113 °F) and the computer is off.
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.