Acer Extensa 390 User Manual page 57

Operating on Battery Power
Use the AC adapter whenever possible so that
q
the battery is reserved for on-the-go
computing.
Keep the battery pack in the computer
q
powered by the AC adapter. The constant
trickle charge maintains the battery level to
eliminate the battery self-discharge effect.
The charge-in-use function also charges the
battery pack.
Disable the parallel and serial ports if no
q
devices are connected to these ports. You can
do this through the Setup Utility. See section
5.3.3.
Eject the PC card from the card slot when not
q
in use, since the PC card draws extra power.
Store the battery pack in a cool, dry place.
q
The recommended storage temperature for
battery packs ranges from 10 to 30 degrees C.
The higher the storage temperature, the faster
the battery pack self-discharges.
The batteries can be recharged about 500
q
times when used as directed. Excess
recharging decreases battery life.
Take care of your battery pack and AC
q
adapter. See the notices section found in the
front part of the user's guide.
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