Service Hints & Tips
5. Make sure all computer doors and covers are closed.
6. Use a quality carrying case that provides adequate cushion and
protection.
Cleaning Your Computer
You should occasionally clean your computer as follows:
Use a soft cloth moistened with non-alkaline detergent to wipe
the exterior of the computer.
Don't spray cleaner directly on the display or keyboard.
Gently wipe the LCD with a dry, soft cloth.
Extending Your Battery Life
The amount of battery power consumed by your computer depends
on such conditions as the usage frequency, the operating temper-
ature, and the period in storage (if unused). The following tips can
help you to extend the life of your battery:
If your battery is brand new and you are charging it for the first
time, it might not become fully charged due to the characteristics
of the chemicals in the cell. To maximize performance, ensure
that all chemicals in the battery are fully activated by cycling the
battery (fully charge, then fully discharge) three times. This pro-
cedure is also recommended if you stored the battery for a few
months.
Do not charge the battery pack until all of its power is used.
Recharging a battery pack that is not completely discharged can
shorten battery life.
Once you start charging the battery pack, do not use it until it is
fully charged.
Whenever possible, use the ThinkPad battery power-saving
modes:
– standby: The LCD and the hard disk drive are turned off.
– suspend: All tasks are stopped and stored in memory to
save power.
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ThinkPad 390X User's Reference
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