Running The Computer On Battery Power; Using Additional Battery Packs; Maximizing Battery Life - Toshiba Satellite P20-8PW User Manual

Running the computer on battery power

The computer uses a removable Lithium Ion (Li-ION) battery pack that
provides power when you are away from an AC power source. You can
recharge it many times.
In addition to the removable battery, the computer has an internal real-
time clock (RTC) Lithium rechargeable battery. The RTC battery powers
the RTC memory, which stores your system configuration settings and
the current time and date for up to a month while the computer is turned
off.

Using additional battery packs

If you spend a lot of time travelling and need to work for many hours
without an AC power source, you may want to carry additional charged
battery packs with you. You can then replace a discharged battery and
continue working.
A new battery pack should be fully discharged, by running the computer
solely on battery power, and recharged three times when first used.

Maximizing battery life

A battery can be recharged many times. Gradually over time it will lose its
ability to hold a charge. To maximize the life of your battery:
■
If you are not going to use the computer for a long period of time,
remove the battery.
■
Alternate between battery packs if you have a spare.
■
Make sure the computer is off when you are replacing the battery.
■
Store spare battery packs in a cool dry place out of direct sunlight.
User's Manual
Mobile Computing
4-2