Kernel task causing battery drain and crashes

Thank you. I realize that CCleaner was installed after the problem started and is not the cause. However, a caution: it will cause you grief in the future. It was originally written for Windows and the first Mac versions of CC were bad about removing things a Mac required to run. Translated: "dead mac." I am still not sure if they got it right and don't trust it.

I use Coconut Battery all the time and it is fine. Unlike those other utilities it is basically a reporting app that does not run in the background nor interfere with protection already in the macOS. Likewise, EtreCheck is also a reporting app designed to securely create system snapshots for troubleshooting via posts in these forums.

Remember that the Mac OS is very robust and you have already paid Apple to build in defenses. macOS has also featured automatic self-maintenance scripts for about 20 years. That third-party stuff interferes with what Apple designed into the system and you get, at best, reduced performance and, in the worst case, a very unstable computer.

The only full-time third-party utility that runs in the background that most of the senior contributor here recommend is Malwarebytes. It is handy when users totally ignore the warnings macOS gives them and download something they should not. MB is a great tool to rid the computer of adware that a user invited in.

IF you wish you can post an EtreCheck report. We can quickly and within the confines of these forums help you determine if other software issues are the problem. EtreCheck is available free from the Mac App Store here:

https://itunes.apple.com/us/app/etrecheck/id1423715984?mt=12

We can also see hard data about drive performance and RAM usage. Etrecheck is the development of a long-serving and trusted contributor here expressly for displaying information in these forums to help us help you. It will not reveal any personal or secure information.

Run it, select “Report" from the left-hand pane (scroll down to the bottom of that pane to find). When its report displays, click the "Share Report" icon from EtreCheck’s toolbar and then "Copy report” from the resulting dropdown.

Please DO NOT highlight the text in the report before using Etrecheck’s “Copy report” command—that will garble the formatting and make the report slower and harder to evaluate.

NOTE: Recent changes to the forum software require you use the “Additional Text" icon (see example below) to embed the report into a post:

Paste the report into the resulting “Additional Text” window.

Also see this excellent user tip on posting text reports like EtreCheck. It is better illustrated than mine.

https://discussions.apple.com/docs/DOC-250000211

I have done the SMC Reset, following recommendations here.

See if you qualify: https://www.apple.com/support/13inch-macbookpro-battery-replacement/

Try resetting the SMC https://support.apple.com/en-us/HT201295

Apple Portables: Troubleshooting MagSafe adapters - Apple Support

Try a SafeBoot https://support.apple.com/en-us/HT201262

Takes noticeable longer to get to the login screen, does a 5-15 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc. Test. Restart as normal.

Boot into Recovery (Command R) and from the dropdown menu: Utilities>  Disk Utility> run the First Aid on your Macintosh HD. If errors are found and repaired, run again until no errors reported.

Recovery: https://support.apple.com/en-us/HT204904

If you are still having issues—take it in get a free over the counter 'Apple Service Diagnostics' test /assessment

Make an appointment for a "hardware issue"—

https://www.apple.com/retail/geniusbar/

Try the following:

• Try resetting the SMC one more time
• Reset the PRAM, hold down COMMAND, OPTION, P AND R when computer starts up. When screen turns black, release the keys
• Do a clean reinstall of macOS Mojave

Hope this helps!

mdp1101

I have same problem, i spoke with customer service and i try to reset SMC and PRAM. In my case it don’t work. In the end i decided to reinstall Mojave after formatting the disk and today i can't see a series on amazon because this task block my Mac. I am desperate my new Mac works worse than the old 2011 imac. All this after installing the new update

No I don't resolve with reinstall all. This is my report with etrecheck.

Kernel_Task can work overtime when useless and unneeded third-party utilities are installed. Have you installed any anti-virus programs, or apps which claim to clean, optimize, or tune up your Mac?

I'm not seeing the usual suspects. For test purposes you might turn of your VPN and see it is involved. Those things can "phone home" a lot.

He posted one on June 7