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Handling Your Computer
Extending Your Computer's Battery Life
The amount of battery power consumed by your computer depends
on such conditions as the usage frequency, the operating
temperature, 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. Also,
follow this procedure 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.
– Hibernation: All tasks are stopped. The memory data and
the current status of the computer are stored on the hard
disk; 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 supply of power 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.
Chapter 1. Getting Familiar with Your Computer 39
Title: C79EGMST CreationDate: 02/10/98 09:24:42