When using the battery as much as possible off the wireless

(B) an office, how to extend laptop battery as far as possible the hours?
1. the brightness of the screen to shrink. F2 in the BIOS boot to adjust brightness elements or the use or the fn + up / down buttons to adjust the brightness quickly.
2. Open the property of changing the speed of the CPU, which can prolong the life of the battery. Speedstep CPU 's BIOS function is enabled by default. When using batteries, the frequency of the CPU used is automatically reduced to save energy. If not enabled, please start by F2, enter the BIOS are running, set to Enable Speedstep enabled. (Old BIOS is the Alt + P for the sixth page, change the Intel SpeedStep)
3. use of standby, sleep and other functions. The more time without the computer, Dell Inspiron 630m Battery, Battery Dell Inspiron 640m, Dell Y9943 laptop battery that allows the suspension or hibernation, the energy savings of computers to extend the life of another. (Tip: Make sure your drivers for video card installed successfully, the power management options can be set.)
In Windows procedures in the power management settings, usually can be set to "Dell Inspiron 630m battery, laptop (notebook).
We also suggest using the battery, turn the monitor off timeout is set to 5 minutes, so when not using the laptop for a while, will direct a black screen state, so that is not protective screen to run more power.
(4) When using the battery as far as possible on the wireless network, Bluetooth and infrared ports. Remove peripherals when not in use at the same time to prevent the opening of large 3D programs, games, etc, to reduce unnecessary battery consumption.
Chapter II Keyboard
1. how to use the keyboard backlight?
Backlit keyboard is your good helper to work the dark, can be Fn + → or BOIS, driver power to the DCP. Such as the installation of DCP can also adjust the brightness of the backlit keyboard. Automatically adjusts the backlight of the keyboard and the role of ALC is used in conjunction with, especially in the dark and the light turns on automatically and can be provided for activities in the keyboard or mouse does not turn off the light time background.