Microsoft Edge efficiency mode reduces CPU and RAM usage to save battery life

Microsoft Edge Update Dev New
Microsoft Edge Update Dev New (Image credit: Daniel Rubino / Windows Central)

Updated November 19, 2021 at 8:55 AM: This post has been updated with the date efficiency mode started rolling out to Edge.

What you need to know

  • Microsoft introduced an efficiency mode in Microsoft Edge to reduce battery consumption.
  • Efficiency mode reduces CPU and RAM usage to extend the battery life of PCs.
  • Microsoft announced efficiency mode alongside several new Edge features that focus on saving time and money.

Microsoft announced several new features for its Edge browser this week. Most of those tools focus on saving time and money while shopping, such as the new price notification feature. The company also introduced efficiency mode for Microsoft Edge to reduce battery consumption.

Efficiency mode kicks in when a PC's battery is low. The feature reduces CPU and RAM usage to lower how much power it draws from a device.

Here's Microsoft's description of the feature from the blog post introducing it:

When your device's battery is low, Microsoft Edge will set itself to efficiency mode and significantly reduce system resource usage like CPU and RAM, extending battery life and helping you get more done while on the go.

If you don't like Edge switching to efficiency mode, you'll be able to toggle the option off through the browser's settings.

The feature initially rolled out with Edge version 95 in October but was highlighted by Microsoft's recent blog post.

While you're browsing the web with Edge, make sure to check out our guide on how to use the browser to help you save time and money on Black Friday.

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Sean Endicott
News Writer and apps editor

Sean Endicott is a tech journalist at Windows Central, specializing in Windows, Microsoft software, AI, and PCs. He's covered major launches, from Windows 10 and 11 to the rise of AI tools like ChatGPT. Sean's journey began with the Lumia 740, leading to strong ties with app developers. Outside writing, he coaches American football, utilizing Microsoft services to manage his team. He studied broadcast journalism at Nottingham Trent University and is active on X @SeanEndicott_ and Threads @sean_endicott_.