35
Battery Pack
Your Tablet PC has two battery packs. The battery pack is the internal power
source for the Tablet PC. 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 battery’s 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
Tablet PC.
To charge the battery pack, connect the AC adapter to the Tablet PC and an
electrical outlet. The Battery Indicator (
) on the Tablet PC glows amber to
indicate that charging is in progress. You are advised to keep the Tablet PC
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 Tablet PC has been fully recharged, do not immediately
disconnect and reconnect the AC adapter to charge it again. Doing so may
damage the battery.
