How to Fix Battery Drain Issue in macOS Big Sur?

Like any other operating system available on the market, macOS Big Sur was also beta-tested for the most common issues & bugs, before finally releasing it for public use. While the OS was thoroughly tested to avoid any inconvenience to users, still it has some bugs & issues that manage to creep through. Battery draining fast in macOS Big Sur is one such issue that many users have encountered after upgrading to this latest operating system for Mac by Apple. You may also notice that MacBook getting very hot and fans working hard to keep them cool.

Why does battery drain faster after an update?

Some CPU intensive tasks such as re-indexing the Spotlight database and other file databases, including Photos’ library is one major issue why battery drain faster in macOS Big Sur. During these tasks, processor drives hard and consumes more energy, draining the battery faster.

Another reason behind battery draining fast is related to process called “kernelmanagerd”. Here, this process is consuming a lot of CPU cycles consuming more energy.

What is “kernelmanagerd”?

Kernelmanagerd is a process designed to manage kernel extensions, or kexts, in third-party applications. It is possible that certain third-party apps are facing issue with kernel extensions. It makes Kernelmanagerd to work hard to resolve them. Thus, it consumes a lot of CPU cycles.

How to identify if the kernelmanagerd process is causing trouble?

  • Select Applications > Utilities and launch Activity Monitor.
  • To order processes by the CPY cycles the are using click the CPU column.
  • Check kernelmanagerd process.
  • If it is consuming over or close to 70% of CPU cycles, then this is the reason behind battery drain.
Activity monitor on Mac

How to fix battery draining fast issue in macOS Big Sur?

Spotlight indexing the disk could lead to fast battery draining. New indexing could last up to two days consuming a lot of energy. You need to check if Spotlight is still indexing by following these steps:

  • Click on the Spotlight.
  • Type a couple of characters into the search bar.
  • If it displays “indexing…” in the progress bar, then Spotlight is still indexing, consuming igher number of CPU cycles.

Now all that you can do is to wait to complete indexing by Spotlight. Once it is done, your battery will be back to normal.

If you found kernelmanagerd process is consuming more CPU cycles, then you should consider uninstalling all unnecessary programs from your Mac. It will help you free up valuable device resources and release pressure from them as many third-party software run in the background unnecessarily.

To uninstall unwanted programs, you can use the best app uninstaller software for Mac.

Reduce the load on the CPU

To reduce to load on the CPU, you should consider managing login items. Login items are programs & processes that run in the background when you boot your Mac. Many of these processes run unnecessarily, thus it is always a good idea to reduce login items. To do this, open System Preferences > Users & Groups. Now select and disable all unnecessary apps that run at startup.

Users & Groups

Another thing you should try is to reduce the browser tabs. If you open a lot of browser tabs unnecessarily while working, then remember they are consuming more RAM and CPU cycles. Simply close all unnecessary browser tabs to save CPU cycles and draining battery life. This especially important to close unnecessary tabs, if you’re using Google Chrome.

chrome extensions

Conclusion

So these were few quick solutions to fix battery draining fast in macOS Big Sur. Do try these steps and share your experience in the comments below.

Leave a comment

Your email address will not be published. Required fields are marked *

Popular Post

Recent Post

10 Best A/B Testing Tools in 2021

By TechCommuters / April 14, 2021

Are you finally ready to optimize your website? Ready to create a user-friendly website that can dramatically increase your sales? Then, you must have already gone through all the amazing A/B testing tools available in the market.  You know the UX A/B testing software market wasn’t that crowded a few years back. There were only […]

10 Best Warehouse Management Software in 2021

By TechCommuters / April 12, 2021

Are you running an online store? Then, dispatching items, tracking deliveries, taking returns, and managing stock must give you a terrible migraine.  But, not anymore! With the best warehouse management software in 2021, you can efficiently manage all warehouse operations with ease. WMS software will reduce manual labor and improve customer services in no time. […]

10 Best 3D Architecture Software in 2021

By TechCommuters / April 10, 2021

Are you an architect, interior designer, or just a hobbyist? You need 3D architecture software to conceptualize your building or home design ideas. Plus, do you know how quick and accurate models you can create with 3D printing? If not, let us help you find the best architecture design software in 2021. With the right […]

10 Best Billing and Invoicing Software in 2021

By TechCommuters / April 8, 2021

Billing and invoicing is a hard business. Creating invoices, sending them, and following up on unpaid bills can take up a lot of time. On the top, recurring bills and invoices can definitely lose you money without even realizing it.  Billing and invoicing software are the perfect alternatives to your old accounting system. Using billing […]

10 Best Accounts Payable Software in 2021

By TechCommuters / April 6, 2021

Accounting is a very broad spectrum revolving around numerous financial operations. Accounts payable management is one of the crucial accounting operations to maintain a proper cash flow system. AP teams processes, records, and ensure to pay vendors on time.  The accounts payable software can fully automate manual data entry work. Additionally, AP software helps with […]

10 Best Payroll Management Software in 2021

By TechCommuters / April 4, 2021

Whether you are a solopreneur or a corporate leader, undoubtedly, you need the best payroll management software to smoothly run your business. HR payroll software helps in saving time, efforts and keeping your staff happy. Plus, payroll software ensures that you meet all the tax compliance.  If you haven’t yet selected the suitable payroll software […]

10 Best Medication Tracker and Pill Reminder Apps in 2021

By TechCommuters / April 3, 2021

Health is Wealth — we all know that! Unfortunately, not many people still pay attention to their medication and take their prescribed pills on time.  Often work schedules and home chores take all your attention that you don’t remember to take your medicines on time. If that always happens with you, technology has invented a […]

How to Transfer Videos from iPhone to Mac

By TechCommuters / April 1, 2021

Now that your iPhone storage is almost full and the easiest way to free up some space is to move your large files from iPhone to your Mac. Videos occupy fair share of total storage space and it is wise to move these large files to your Mac so that you give your iOS device […]

10 Best Internet Radio Stations in 2021 Around the Globe

By TechCommuters / March 31, 2021

Today, you can open Spotify or iTunes apps anytime on your phone and listen to unlimited music. But, if you want a full listing experience, your good old radio is the best option. For some witty talks, meaningful entertainment, and lighthearted programs, online radio stations are the right place.  It doesn’t matter where you are […]

Steps To Launching A Successful Tech Business

By TechCommuters / March 30, 2021

The tech industry has taken pole position in the latest the MBA Career Services & Employer Alliance survey, with the industry seeing the largest increase in full-time job postings in business schools in the autumn of 2020. During a difficult time for both job hunters and entrepreneurs, says MBA Atch, tech ‘is the silver lining’, with various […]