Microsoft tests ‘Adaptive Energy Saver’ to boost Windows 11 battery performance, but there's a catch

Microsoft is working on a smarter way to help your device save energy, but it’s not ready yet. The feature, called Adaptive Energy Saver, was recently discovered in the latest Windows 11 preview builds.

The new mode was first spotted by @phantomofearth, a reliable Windows enthusiast known for finding hidden features. Per the post on X, the system automatically switches to energy saver mode after enabling a background service called “Windows Health and Optimized Experience.”

Microsoft confirms the feature, but it’s not finished

Brandon LeBlanc from Microsoft’s Windows Insider team confirmed the feature exists—but also noted it’s not behaving as expected yet. “Despite appearing this might be working, it’s likely not working very ‘adaptively,’” he posted in a reply to @phantomofearth’s on X.

That’s likely why Microsoft hasn’t announced it or turned it on by default. Right now, the feature can be enabled manually using ViVeTool (Download now) and feature ID 56401475.

Adaptive Energy Saver apparently looks at what you’re doing on the device, your battery charge, and system load, then changes power behavior automatically. It’s intended to extend battery life without you needing to toggle anything manually.

Microsoft hasn’t confirmed the rollout timeline of the feature just yet. But if it does, Adaptive Energy Saver could become a small but useful part of how Windows 11 manages performance on laptops and tablets in the background.