Windows 7 system extends laptop battery life

Hardware requirements are low, and the user interface is more user-friendly. The advantages of Windows 7 systems that many readers know, but do you know that Windows 7 has an energy-saving effect on notebooks? Because Windows 7 has built-in powerful power management components, it has more optimizations in notebook energy saving than any previous system. Windows 7 systems extend laptop battery life even without installing software. Here is a brief introduction to the use of customized power solutions to meet the energy-saving needs of notebook users.

First, use the preset energy saving scheme

For notebook or netbook, after installing Windows 7, just click the battery icon in the system tray, the “Select Power Plan” window will pop up. At this time, the remaining battery life will be displayed, and the “balance” and “energy saving” power modes will be provided. By default, the “balance” mode is used. If you are using battery power and want to obtain longer battery life, it is recommended to select "Energy saving" mode.

The author used the Lenovo M10 netbook for comparison test. When using the preset power saving mode of Lenovo power management under Windows XP, the usage time is only 2.5 hours, and when using the preset energy saving mode built in Windows 7, use The time actually reached 3.5 hours, which proves the energy-saving advantages of Windows 7 built-in power management components. If you want to save energy on the screen, you can choose "Adjust screen brightness", enter "Power Options" and drag the "Screen Brightness" slider (Figure 1).

Second, custom power supply solutions

For business users, it is often necessary to use notebooks in different environments, such as power supply in household power adapters, hope to have the best performance When using battery power on the train, I hope that the battery life is the longest. When I conduct a PPT demonstration at a business meeting, I hope that the energy saving and performance are balanced. As a result, the default power solution of Windows 7 cannot meet the demand, but we are You can customize the corresponding power usage scheme for different application environments.

The method is to enter the "Power Options" window, click "Create Power Plan", first select a default power plan, such as 3G Internet mobile office, you can select the "energy saving" plan, then enter the plan name, click The "Next" button, then set the details of the plan (Figure 2), for example, under the "Battery" list, set the automatic reduction of screen brightness within 1 minute to save power, automatically turn off the display after 2 minutes, and After 10 minutes, it will automatically enter the sleep state. At the same time, you can directly adjust the brightness of the display of the plan. After setting, click the “Create” button.