3-4 Managing Power
To charge the battery pack, connect the AC adapter to the computer and
an electrical outlet. The Battery Charge Indicator ( ) on the Tablet
PC’s Device Indicators appears 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
disappears.
It takes approximately 90 minutes to charge the battery pack to 80%
capacity and two or three more hours to fully charge the battery pack. The
battery pack may become warmer when being recharged or under normal
operation. This is completely normal.
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 drops automatically due to the self-discharge process
(0.21% per day), even when the battery pack is fully charged (100%). This happens
either with the battery pack installed in the computer or stored separately.
The battery pack is not charged when the computer is first bought. Make
sure to charge it for at least 8 hours before using it for the first time.
Charging starts automatically when the AC adapter is plugged in to the
computer.
Checking the Battery Level When two batteries exist on the system, the battery’s discharge sequence
is from the main battery to the backup battery. When the battery charge
on the main battery falls below 5%, then power usage will switch to the
backup battery. Backup battery will only provide power source around 5
minutes for user hot swap main battery, if over this period minutes and
main battery didn’t plugged in, then system will shutdown.
NOTE: Any battery level indication is an estimated result. The actual operating time can
be different from the estimated time, depending on how you are using the computer.