On Windows 11, you can enable and configure the "Hibernate" feature to extend your device's battery life. The feature works by saving data in memory onto the hard drive using the "Hiberfil.sys" system file. When you turn off the laptop or desktop computer to save power, it resumes where you left off the next time you turn it on.
The feature isn't as fast as sleep mode. However, it is still a great feature to preserve battery when you are not using the device or running low on battery power. Your laptop might be experiencing fast battery-draining issues due to a system or app bug because the battery is depleted, or because you have to replace the battery and can't close the work you are doing.
