Lenovo ThinkPad T21 English - 46L4325 - ThinkPad T20, T21User's Reference guid - Page 14

Carrying your computer, Extending the life of your computer's battery

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Carrying your computer When carrying your computer, follow these instructions to prevent possible damage to it and your data: 1. Remove any media from the CD-ROM drive or diskette drive. 2. Turn off all attached devices. 3. Power off the computer, or enter suspend or hibernation mode; then close the LCD. Make sure the suspend indicator is on when the computer is in suspend mode, or the power indicator is off when it is powered off or in hibernation mode. 4. Unplug all external cables and cords connected to your computer. 5. Make sure all computer doors and covers are closed. 6. Use a quality carrying case that provides adequate cushion and protection. Do not move the computer when the hard disk drive is accessing data-that is, when the indicator is blinking. Make sure the indicator is off before you carry the computer. Extending the life of your computer's battery The amount of battery power consumed by your computer depends on such conditions as the frequency of use, the operating temperature, and the period in storage (if unused). The following tips can help you to extend the life of your battery: Do not recharge 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: - Screen blank - Standby - Hibernation For more information, refer to the online user's guide. Decrease the brightness of the LCD. Use power management. Each operating system comes with its own power management system. xiv IBM ThinkPad T20 User's Reference

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Carrying your computer
When carrying your computer, follow these instructions to prevent
possible damage to it and your data:
1. Remove any media from the CD-ROM drive or diskette drive.
2. Turn off all attached devices.
3. Power off the computer, or enter suspend or hibernation mode;
then close the LCD.
Make sure the suspend indicator is on
when the computer is in suspend mode, or the power indicator is
off when it is powered off or in hibernation mode.
4. Unplug all external cables and cords connected to your
computer.
5. Make sure all computer doors and covers are closed.
6. Use a quality carrying case that provides adequate cushion and
protection.
Do not move the computer when the hard disk drive is accessing data—that
is, when the indicator is blinking.
Make sure the indicator is off before you
carry the computer.
Extending the life of your computer's battery
The amount of battery power consumed by your computer depends
on such conditions as the frequency of use, the operating
temperature, and the period in storage (if unused).
The following tips
can help you to extend the life of your battery:
±
Do not recharge 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:
–
Screen blank
–
Standby
–
Hibernation
For more information, refer to the online user's guide.
±
Decrease the brightness of the LCD.
±
Use power management.
Each operating system comes with its
own power management system.
xiv
IBM ThinkPad T20 User's Reference