IBM ThinkPad 570, Руководство пользователя

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Saving battery power
Your battery pack should be useful for approximately 3 years, or 300
charge-discharge cycles. The number of years or charge-discharge
cycles might vary depending on how efficiently you use your
computer. This section describes the following:
Using the power management modes
Using the other battery-saving methods
Using the power management modes
You can run your computer on battery power for a considerable time
by using the power management modes (standby mode, suspend
mode, and hibernation mode).
Note:
Even if you don't set the low-battery alarm, the charge
indicator will let you know when the battery is low, and then
your computer will automatically enter the power-saving mode.
This default low-battery behavior is independent of the
operating system, so the computer might behave differently
from your setting if you set the low-battery alarm. The
computer chooses appropriately between your setting and the
default setting.
Attention
Do not enter suspend or hibernation mode when your computer
is doing any of the following:
Playing or recording audio
Playing a movie
Playing a game
Running any other multimedia application
Stop these applications before entering suspend or hibernation
mode.
Standby mode
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IBM ThinkPad 570 Online Book