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Table of Contents
Check for Devices Waking Your Laptop
Look Into Background Apps and Services
Adjust Power Settings for Deeper Sleep
Home System Tutorial Windows Series Why is Windows 11 making my laptop battery drain faster in sleep mode?

Why is Windows 11 making my laptop battery drain faster in sleep mode?

Jul 17, 2025 am 02:29 AM

To fix Windows 11 laptop battery drain during sleep, first identify wake sources via Device Manager and disable unnecessary devices from waking the PC using “Allow this device to wake the computer.” Second, limit background apps and services through Settings > Apps > Background apps and Task Manager. Third, adjust power settings by disabling real-time clock wake timers with powercfg /setacvalueindex and enable Hibernate mode for deeper power savings. These steps address common causes of excessive battery use in sleep mode.

Why is Windows 11 making my laptop battery drain faster in sleep mode?

If you've noticed your laptop battery draining faster while in sleep mode since upgrading to Windows 11, you're not alone. This issue affects many users and usually comes down to background processes, device settings, or power management configurations that behave differently in Windows 11 compared to earlier versions.

Why is Windows 11 making my laptop battery drain faster in sleep mode?

Check for Devices Waking Your Laptop

One of the most common reasons is that certain devices or apps are waking your laptop from sleep more frequently than necessary. USB devices like mice, keyboards, or even network adapters can trigger wake-ups.

  • To check which devices are allowed to wake your PC:
    • Go to Device Manager.
    • Expand categories like Keyboards, Mice and other pointing devices, and Network adapters.
    • Right-click each device, go to Properties > Power Management, and uncheck “Allow this device to wake the computer” if you don’t need it to.

Also, you can use the command prompt to see what last woke your system:

Why is Windows 11 making my laptop battery drain faster in sleep mode?
powercfg /lastwake

This gives you a quick idea of what might be causing frequent wakeups.

Look Into Background Apps and Services

Windows 11 introduced more integration with cloud services, widgets, and background sync features. These run even when your system is idle and can prevent the laptop from entering deep sleep states.

Why is Windows 11 making my laptop battery drain faster in sleep mode?
  • You can limit background activity by going to:
    • Settings > Apps > Background apps
    • Turn off apps you don’t need running in the background.

Additionally, some system services—like Windows Search, Cloud Sync, or Push Notifications—can keep the system active. You can manage these through Task Manager (Ctrl Shift Esc), under the Startup tab, or by tweaking Group Policy (for advanced users).

Adjust Power Settings for Deeper Sleep

By default, Windows 11 may not use the deepest sleep state available (S3 or Modern Standby), especially on newer laptops designed for always-connected experiences.

  • Try switching your power plan to High Performance temporarily and see if it makes a difference.
  • Or manually configure sleep behavior:
    • Open Command Prompt as administrator and type:
      powercfg /setacvalueindex scheme_current sub_sleep rtclock 0

      This disables the real-time clock wake timer, which sometimes triggers unnecessary wakeups.

You can also enable Hibernate mode, which uses almost no power:

powercfg /hibernate on

Then set your laptop to hibernate instead of sleep via Settings > System > Power.


These tweaks should help reduce battery drain during sleep. It's not overly complicated, but it does require checking a few different areas to find the root cause.

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