Drain Runner Mac OS

Every new upgrade to an operating system brings its own bugs and issues. Even though new major updates are beta tested for many months before being made publicly available, one or two bugs still manage to creep through. One of those bugs seems to be the battery draining in Big Sur. This is often accompanied by MacBooks getting very hot and fans working hard to keep them cool. Here’s why it happens and what to do about it.

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Why does the battery drain faster after an update to Big Sur?

The nail reason is that after an update, your Mac needs to re-index the Spotlight database and other file databases, including Photos’ library. This is a CPU intensive task that can drive the processor hard and consume energy, draining the battery more than it would typically do.

However, in macOS Big Sur, there seems to be something else going on. Many users have reported that they found that a process called “kernelmanagerd” was consuming lots of CPU cycles.

Boot Runner can automatically restart into a operating system at a specific time. This is great for keeping Windows up-to-date with updates, OS updates, or patching. You can configure Boot Runner to restart to the specified OS between specific time periods: Boot Runner will make sure that the Mac stays in that OS regardless of how many times.

CleanMyMac X has several tools that optimize your Mac and keep it running smoothly. One of them is the Maintenance utility: it frees up your Mac’s memory and runs useful system optimizations. Download CleanMyMac X here and run maintenance scripts — you may be able to fix the problem with battery drain in Big Sur.

What is “kernelmanagerd”?

Kernelmanagerd is a process that manages kernel extensions, or kexts, in third-party applications. It appears that what is happening is that some third-party apps are having trouble with kernel extensions, causing kernelmanagerd to work hard to resolve them and thus consume lots of CPU cycles.

How to tell if the kernelmanagerd process is causing problems

1. Go to Applications > Utilities and launch Activity Monitor.
2. Click the CPU column to order processes by the CPU cycles they are using.
3. Look for a process called “kernelmanagerd.”
4. If you see it and it’s consuming close to or more than 70% of CPU cycles, that’s why your battery is draining more quickly.

How to fix battery drain in macOS Big Sur

Spotlight app can also be the reason why your Mac battery drains quickly. After the upgrade, Spotlight starts making new indexing of the disk, which can last up to two days and consume lots of energy.

Here’s how to check whether Spotlight is still indexing:

1. Click on the Spotlight icon in the menu bar in the top right corner.
2. Type a couple of characters into the search bar.
3. If you see a progress bar with “Indexing…” in it, that means Spotlight is indexing and probably consuming a huge number of CPU cycles.

If Spotlight is indexing, the only thing you can do is wait. The good news is that when it’s done, your battery will be back to normal.

If you checked Activity Monitor for kernelmanagerd and found it consuming CPU cycles, the culprit probably is some software. Users reported that both Sophos Home and Malwarebytes caused kernelmanagerd to consume lots of CPU cycles and battery power, but these apps are likely not the only ones. Other programs that tend to work in the background can also drain your Mac.

You can use CleanMyMac X to remove any app and its data. CleanMyMac X allows you to uninstall many apps in one go, which is incredibly useful if you have lots of programs you don’t use anymore.

Reduce the load on the CPU

One of the biggest contributors to an overworked CPU is having a large number of browser tabs open. While this is convenient, it consumes RAM and puts pressure on the CPU, draining battery life. This is especially true if you’re using Google Chrome.

You should also make sure that Chrome and other web browsers are up to date and disable any extensions you don’t use.

It’s a good time to review login items, too. These processes launch when you boot your Mac and run in the background. They may also be reducing battery life. To disable startup items, go to System Preferences, and then navigate to Users & Groups. Here, select the apps that are launching on Mac’s startup and disable them by pressing “—.”

There are a number of reasons why your Mac’s battery might be draining more quickly after you upgraded to Big Sur. Fixing them could be just a matter of waiting for Spotlight to finish indexing, or you might need to take further action. Hopefully, you managed to get to the button of the problem and stopped your Mac battery from running out of charge so fast.

New updates are being added at the bottom of this story…

Drain Runner Mac Os Update

Original story (published on November 20, 2020) follows:

Apple’s macOS 11.0, which is dubbed as Big Sur, was released on November 12 after a beta program since August.

And there have been several reports of users facing battery drain and overheating issues on their MacBooks already, after the update.

Some of such complaints have been given below.

Hey guys, someone have a battery drain with Big Sur? I have a MB 16″ 2019, now it has 2 hours with the battery.
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I too have exactly the same issue with my MacBook Pro (13-inch, 2019, 2.8GHz i7, 16GB memory). Battery was superb before, lasting 8+ hours. Updated and now won’t even even two hours. Please, please Apple can this be resolved asap as I use my MacBook on the move a lot and this is incredibly frustrating. Especially with how hot it is getting!
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As apparent from the above complaints, users report that their Macs’ batteries are draining much faster than usual, with plenty of them also stating that it’s only lasting for just two or so hours, which is terrible.

Such a dramatic drop is clearly abnormal and could quite possibly be some kind of bug in the OS. However, reports like these aren’t entirely new as users have faced similar issues after previous major updates as well.

Battery drain isn’t the only problem though, as it is coupled with plenty of overheating too. This has led to the PC’s fans whirring constantly, further adding to power consumption and thus worsening the situation.

The issue is also not limited to just a single MacBook model, or even a couple. Rather, it is being faced on various models from the 2020 releases, all the way back to the 2013 ones.

If you are one of the users facing battery drain issues after updating to macOS Big Sur, then you have come to the right place, as we have the problem covered.

Possible causes & solutions for the macOS Big Sur battery drain issues

1. Overheating right after update: Several users have reported the issue right after updating. Overheating soon after a major update like Big Sur is pretty normal as the system takes time to settle down.

Give the Mac a couple of days before checking on the problem again, as there are plenty of processes that run in the background right after an update that need to be completed before the system can function just fine again.

2. Spotlight: Several users have also suspected Spotlight of being the culprit. It keeps running in the background under the process name of “spotlight.app” with a pretty high CPU usage.

Again, this is quite normal as the app performs indexing which could take up to a day or two. The best way to workaround this is to simply let the system running until Spotlight is done with its after-update chores.

3. Reset NVRAM & SMC: A few users reported that performing this has fixed the issue for them.

To do the same, shut down your Mac, then turn it on and immediately press and hold these four keys together: Option, Command, P, and R. You can release the keys after about 20 seconds, during which your Mac might appear to restart.

For more info regarding this, visit the official support article by Apple from here.

4. Disable optimized battery charging:

I disabled Optimized Battery Charging. The problem seems to be fixed this way. Any ideas? I’ve also reseted the SMC.
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5. Background processes: Check your “Activity Manager” for processes with abnormally high CPU utilization and kill such processes accordingly.

An example of such a process is the “Google Chrome Helper” process that reportedly has been running constantly with a 100% CPU usage. Stop such processes or uninstall apps associated with them to conserve power.

6. Battery drainage during sleep mode: If you are seeing your battery percentage drop upon booting up your device after a period of system shut down, the issue could be linked with a messed up battery calibration due to the update.

To calibrate your laptop’s battery, charge it to 100%. You can then use it as usual till it shuts down. Repeat the process until you see an improvement.

It is worth noting here that the issue is obviously not being faced by everyone. Reviews of the new update have mostly been positive. A user has even stated that their battery has actually improved after the update.

I have no battery issues with MBP 16 2019. Battery management seems better than Catalina.
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If there indeed is an issue in the Big Sur update, then hopefully Apple will acknowledge it and release a bug-fixing update.

For now, be sure to also check out our related story about Google Drive File Stream issues in macOS Big Sur.

Update 1 (January 21, 2021)

10:46 pm (IST): As per several recent reports, the issue has still not been addressed even with the Big Sur 11.1 stable update. The workarounds above are still valid though, and hence, can be tried on 11.1 as well.

Drain Runner Mac Os X

MacOS BigSur 11.1 random battery drain. Anyone else having this issue? Before updating (prev High Seira) my battery drain was normal. Now it’s terrible. Draining 2% every 5m or so with literally nothing running. Not the only one with this issue.
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Drain Runner Mac Os Catalina

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Drain Runner Mac Os Download

Drain Runner Mac OS