kernelmanagerd process causing high cpu usage & battery drain

I've just updated to macOS Big Sur 11.0. and I'm facing a huge battery drain and cpu usage probably caused by this "kernelmanagerd" process. Is there something I can do to stop it?

MacBook Pro 13″, macOS 11.0

Posted on Nov 13, 2020 4:13 AM

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Posted on Nov 18, 2020 11:28 PM

For me, it seemed to be an old version of Karabiner Elements. I updated it to the latest version so I could open the app's preferences (as I couldn't open the old version on Big Sur), then uninstalled it. Kernelmanagerd dropped from about 50% to 0%.

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kernelmanagerd process causing high cpu usage & battery drain

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