How much power does the laptop have?

Each notebook power is different, generally in 60w-70w or so, but the actual use is not. Notebook accessories are generally designed specifically for low-power design, the power is generally 1/2 to 1/3 desktops, or even lower, the power of the netbook is not to talk about.

Notebook power of the general 20W or so, and the height of the screen, but also related to the CPU, such as the Centrino second generation than the generation of electricity.

The power is also different in the use of the notebook computer, this is what you do in your notebook: surfing the Internet or using the optical drive to see the film, or using a mobile hard drive, as well as the brightness of the display screen, another computer with an automatic power management system, at any time adjust your power.

Notebook Power algorithm: If the output voltage 16 volts, output current 3.75 Ann, then the power of the notebook is 16x3.75=60 tile

The power of the notebook computer is mostly 90w or so.

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Test with a laptop, the power of other types of notebooks can also be roughly referred to:

Model: Shenzhou w220r

Configuration: Pentium Dual core t2130,12 inch highlight widescreen, 2G dr2,120g hard drive, 128M set display

Unplug the laptop battery for power testing and directly measure the voltage and current on the AC side.

Voltage at Test: 224V

1, power-on into Windows before the current: 0.13A-----------------------power: 29.12W

2, enter the system without any operation when the current: 0.10A------------------power: 22.40W

3, play HDTV HD Movie (CPU occupancy 70%) when the current: 0.13A----------Power: 29.12W

4, running a number of large software (CPU consumption of more than 95%) when the current: 0.15A------Power: 33.60W

5, in the above 4 cases close the screen, so that the screen off: 0.11A---------Power: 22.40W

Comprehensive analysis:

Power is unstable at power-on and will fluctuate between medium and highest-------------23~33w

-----------------------------23W when the system is switched on and no action is reached

Running at full speed---------------------------------------------34W

Usually on the Internet or something-------------------------------------27W

Power on the screen minus the power off the screen to draw the screen itself----------9W

To sum up: The notebook computer probably 23--33w about the power.

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