User's Manual

41
Battery Pack
Your computer has two battery packs. The battery pack is the internal power
source for the computer. It is rechargeable using the AC adapter.
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 outside the allowed range,
which is between 0 C (32 F) and 50 C (122 F). Once the temperature
meets the requirements, charging automatically resumes.
 During charging, do not disconnect the AC adapter before the battery has
been fully charged; otherwise you will get a prematurely charged battery.
 The battery has a high temperature protection mechanism which limits the
maximum charge of the battery to 80% of its total capacity in the event of
high temperature conditions. In such conditions, the battery will be regarded
as fully charged at 80% capacity.
 The battery level may automatically lessen due to the self-discharge
process, even when the battery pack is fully charged. This happens no
matter if the battery pack is installed in the computer.
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.
The two battery packs are charged in parallel. It takes approximately 5 hours to
fully charge the two battery packs when the power is off and approximately 6 hours
when the power is on (may need a longer charging time at lower temperatures).
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.