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Mobile Computing
Monitoring battery power
TECHNICAL NOTE: The computer drains the battery faster at low
temperatures. Check your remaining charge frequently if you are
working in temperatures below 50 degrees Fahrenheit.
The computer calculates the remaining battery charge based on your
current rate of power use and other factors such as the age of the
battery.

What to do when the main battery runs low

When the main battery runs low you can:
Plug the computer into an external power source and recharge
the main battery
Place the computer into Hibernation mode and replace the
battery, if applicable with a charged spare (not included with
your computer)
Save your work and turn off the computer
If you do not manage to do any of these things before the main
battery completely runs out of power, the computer automatically
enters Hibernation mode and turns itself off. Hibernation mode
keeps track of where you were, so that when you turn on the power
again, you can continue where you left off.

Setting battery notifications

You can set two notifications. Each notification can be set to alert
you when a specified percentage of remaining battery power has
been reached. You can also set the computer to enter Sleep mode or
Hibernation mode or to completely shut down when the notification
goes off.
To change the default notification settings:
1While on the desktop, click or touch the Battery ( ) icon in
the notification area.
2Click or touch More power options.
The Power Options window appears.
3Click or touch Change plan settings under the power plan to
be customized.
The Edit Plan Settings window appears.