User's Manual

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

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 (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.

To charge the battery pack, connect the AC adapter to the computer and an electrical

outlet. The Battery 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).