Macos big sur battery drain4/10/2023 Here you’ll see a process called “kernelmanagerd.”.Click the CPU column at the upper right corner to check the CPU cycles. Go to Applications > Utilities and launch Activity Monitor.To check if frozen kernel extensions are eating CPUs, causing a thirsty usage of battery, check it in Activity Monitor. This process is used to manage kernel extensions in applications so that tricky issues and conflicts in software can be smoothed. Since macOS Big Sur is known as an overhauled system from Apple, it means there are some other apps that are running in the background.Ī major symptom you’ll see is an undergoing process in your Activity Monitor called “kernelmanagerd”, which will consume CPUs and power supply. Then, the battery life will be back to normal condition. Thus, you may also find your Mac is super hot and slow after a new system update.Īfter one or two times of battery drain (but not make it less than 5% for battery health), you can prepare for recharge and reboot. It may take hours or even a day to complete, which surely will keep asking for power and CPU from your Mac. The reason for this is after you upgrade to macOS Big Sur, the Spotlight.app on your Mac will start new indexing of the whole system, which helps you search for almost everything on your Mac startup disk through Spotlight (Command + Space) in the future. Yes, it’s the simplest and most straightforward workaround to this issue after macOS update. Hence, here, I’d like to share some tricks that might help your battery drain issue in macOS Big Sur. I googled a lot and also swim in different forums, and finally, figure out that most users are suffering from the same things. But in a short time that I was reading through 3-4 Chrome web pages, the percentage decreased to 30% after 30 minutes. Not only the users in Apple community but also me personally have noticed that, after updating to the latest macOS Big Sur, the battery of my computer, a MacBook Air in 2015 drains at a relatively quick speed.Īfter I install macOS 11, the battery was in 70%.
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