Managing power on a portable computer
Using Power Options in Control Panel, you can reduce consumption of battery power on your portable computer and still keep the computer available for immediate use. You can view multiple batteries separately or as a whole, and set alarms to warn you of low battery conditions.
You can put your computer on standby, which turns off the monitor and hard disks to reduce battery power consumption. When you bring the computer out of standby, your desktop appears exactly as you left it. You might want to save your work before putting your computer on standby. While on standby, information in computer memory is not saved on your hard disk. If there is an interruption in power, information in memory is lost.
You might also be able to put your computer in hibernation. The hibernate feature turns off your monitor and hard disk, saves everything in memory on disk, and turns off the computer. When you restart the computer, your desktop is restored exactly as you left it.
The Power Options you see will vary depending on the exact hardware configuration you have. To use Power Options, the computer must be ACPI-compliant, which dictates that all components are capable of power management. If one or more components are not capable of power management, you might either not have ACPI functionality, or might experience erratic behavior.
Operation during commercial air travel
Some commercial airlines might request that you turn off portable computers during certain portions of the flight, such as takeoff and landing. To comply with this request, you must turn off your computer completely.
Your computer might appear to be turned off while in standby mode. However, the operating system might automatically reactivate itself to run certain preprogrammed tasks or to conserve battery power. To prevent this from occurring during air travel, be certain to shut down your computer completely when not in use. For more information, click Related Topics.
In addition, if your computer is equipped with a cellular modem, you must also ensure that this modem is completely turned off during air travel as required by Federal Communication Commission regulations. Failure to comply with these requirements could lead to civil or criminal penalties.
Automatically put your computer on standby
Manually put your computer into hibernation
Automatically put your computer into hibernation
Set a warning alarm for a low or critical battery condition
Manually put your computer on standby
