46
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
NOTE:
Charging will not start if the internal temperature of the battery pack is
below 0
°
C (32
°
F) or above 50
°
C (122
°
F); the charging process will stop
if the internal temperature of the battery pack gets above 60
°
C (140
°
F).
To avoid damaging the battery under this situation, disconnect the AC
adapter and wait for the battery to return to room temperature before
charging again.
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 Indicator lights
green.
