The biggest thing you can do to extend the battery power is to choose the power mode that your device operates in.
Steps:
1. Click the battery icon. You will see the different power modes.
2. You can drag the slider to the left- Battery Saver. It can disable some windows features and also reduce the brightness. But it can extend your battery time maximumly.
3. Click the Battery settings. And you can see how much battery life you have left.
Four default power slider modes:
Battery Saver: Helps conserve power, and prolong battery life, when the system is not connected to a power source. When the battery saver is on, some Windows features are disabled, throttled, or behave differently. Screen brightness is also reduced.
Better Battery: Delivers longer battery life than the default settings on previous versions of Windows. In some cases, users will see this mode labeled Recommended, rather than Better Battery, in their slider UI.
Better Performance: Default slider mode that slightly favors performance over battery life and is appropriate for users who want to trade off power for better performance of their apps.
Best Performance: Favors performance over power and is targeted at users who want to trade off power for performance and responsiveness.
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