Adjust Screen Brightness
You can extend the battery life of your tablet by turning down the screen brightness. Your tablet screen uses a lot of power, so turning down the brightness also reduces battery drain.
On the other hand, if you have trouble seeing the data on your tablet screen, you can often fix the problem by increasing the screen brightness. This is not a problem when your tablet is running on AC power. However, you should not use full screen brightness for very long when your tablet is running on its battery because a bright screen uses a lot of power.
Adjust Screen Brightness
Open the Power Options window.
Note: See the section “Display ...
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