Handling your computer
Maximizing battery-powered operation
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.
Hibernation: All tasks are stopped. The memory data and
the current status of the computer are stored in the hard disk
drive; then the power is turned off.
Decrease the LCD brightness.
Use Advanced Power Management (APM). Each operating
system comes with its own APM.
Stop the power supply to the internal serial devices, including the
modem, the serial port, and the infrared port, if they are not in
use.
Remove the battery pack and keep it in a cool place if you will
not be using the computer for a long period.
Ruggedized mobile computers
Some professionals work in environments that may require special
ruggedized features to protect their computers from extreme temper-
ature, humidity, and physical punishment. Construction, public
service, distribution, repair service, and utilities are some of the envi-
ronmentally demanding professions that may require rugged mobile
computers that can withstand stresses. For these applications, IBM
offers such computers (not ThinkPad systems) especially designed
for mobile professionals who need a system for managing and com-
municating information from the field.
For more information on these computers, consult your IBM Business
Partner or visit our website at:
www.networking.ibm.com/wireless
Chapter 1. Getting familiar with your computer 39