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macOS Monterey 12.2.1 Fixes Bluetooth Battery Drain, Update Now Available


Apple has released macOS Monterey 12.2.1 for Mac users, the update includes a fix for the issue where MacBook batteries would drain when the computer is in sleep mode and has Bluetooth enabled.

The battery draining while in sleep mode issue we first covered in October 2021, but it recently generated wider negative press when it impacted a larger number of Mac users.

MacOS Monterey 12.2.1 also includes an important security fix for WebKit, therefore the update is recommended to all eligible Mac users.

Separately, Apple also released iOS 15.3.1 and iPadOS 15.3.1 with security fixes for iPhone and iPad, and an update to watchOS.

How to Download MacOS Monterey 12.2.1 Update

Be sure to backup the Mac with Time Machine before starting any system software update. Failure to do could result in data loss.

  1. From the  Apple menu, select “System Preferences”
  2. Choose the “Software Update” preference panel
  3. Select to “Update Now” when macOS Monterey 12.2.1 update shows as available
  4. macOS Monterey 12.2.1 update

The update should show as available for any Mac user on Monterey, but you may need to refresh Software Update if it’s not showing up by hitting Command + R from the preference panel.

The update weighs in around 1GB.

Users not running macOS Monterey will find a Safari update available instead.

macOS Monterey 12.2.1 Direct Download Link

If preferred, Mac users can download the full macOS Monterey 12.2.1 installer directly from Apple. This is a complete macOS installer, and not a partial update.

macOS Monterey 12.2.1 Release Notes

Release notes attached to the update are as follows. Note that the release notes specifically mention Intel Macs, although some M1 Mac users have also noted the battery draining problem:

macOS Monterey 12.2.1 – Restart Required

macOS 12.2.1 provides important security updates and fixes an issue for Intel-based Mac computers that may cause the battery to drain during sleep when connected to Bluetooth peripherals.

For information on the security content of Apple software updates, please visit this website: https://support.apple.com/kb/HT201222

If you have any particularly noteworthy experience with the installation, or notice anything unique about macOS 12.2.1, let us know in the comments.





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Naveen Kumar

Friendly communicator. Music maven. Explorer. Pop culture trailblazer. Social media practitioner.

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