User's Manual

6 Managing power
Your tablet can operate on either battery power or external power. When the tablet is running on battery
power only and an AC power source is not available to charge the battery, it is important to monitor and
conserve the battery charge. Your tablet supports an optimal power plan to manage how your tablet uses
and conserves power so that tablet performance is balanced with power conservation.
Initiating Sleep and Hibernation
Microsoft® Windows has two power-saving states, Sleep and Hibernation.
●
Sleep—The Sleep state is automatically initiated after a period of inactivity when running on battery
power or on external power. Your work is saved to memory, allowing you to resume your work very
quickly. You can also initiate Sleep manually. For more information, see
Manually initiating and exiting
Sleep on page 24.
●
Hibernation—The Hibernation state is automatically initiated if the battery reaches a critical level. In
the Hibernation state, your work is saved to a hibernation file and the tablet powers down.
NOTE: You can manually initiate Hibernation. See Manually initiating and exiting Sleep on page 24
and
Manually initiating and exiting Hibernation (select models only) on page 24.
CAUTION: To reduce the risk of possible audio and video degradation, loss of audio or video playback
functionality, or loss of information, do not initiate Sleep while reading from or writing to a disc or an
external media card.
NOTE: You cannot initiate any type of networking connection or perform any tablet functions while the
tablet is in the Sleep state or in Hibernation.
Manually initiating and exiting Sleep
You can initiate Sleep in any of the following ways:
●
Close the display.
●
On the Start screen, swipe from the right edge of the touch screen to reveal the charms. Tap Settings,
tap the Power icon, and then tap Sleep.
To exit Sleep:
●
Briefly press the power button.
●
Tap or swipe the touch screen.
When the tablet exits Sleep, the power lights turn on and your work returns to the screen.
NOTE: If you have set a password to be required on wakeup, you must enter your Windows password
before the tablet will return to the screen.
Manually initiating and exiting Hibernation (select models only)
You can enable user-initiated Hibernation and change other power settings and timeouts using Power
Options.
24 Chapter 6 Managing power