battery – Macbook Professional 2011 gradual


I’ve an odd problem with my Macbook.

  • Macbook Professional (13″ late 2011)
  • Reminiscence 4GB
  • Processor Intel 2.4GHZ
  • Graphics Intel HD
  • Mac OS Sierra 10.12.6
  • Two authentic Energy Adapters 60W

Per week in the past my battery failed and the Macbook turned very gradual on a regular basis underneath any situation. This makes all sense to me. After changing the battery the situation modified (improved lots). Anyhow, I made a decision additionally to do a clear reinstall of Sierra after so a few years, which went with none issues. The next drawback description is identical for the time earlier than and after the re-install of Sierra.

Here’s what occurs:

  • When charged a 100% whereas utilizing the facility adapter the mac will get very, very gradual. The exercise monitor is displaying kernel CPU utilization of as much as 500%, the system is operating at ~93%, consumer load is regular with ~8%. The exercise monitor isn’t displaying any processes with extreme vitality consumption. Reminiscence consumption is regular too. The Mac works nicely till the battery is totally charged.
  • As quickly as I disconnect the facility adapter and the Mac is simply operating on battery the kernel goes down, system and consumer CPU load is operating beneath 10% and all is again to regular. As quickly because the battery cost goes all the way down to ~95% or much less, all is sweet once more additionally with the re-connected energy adapter.
  • The issue repeats itself any time when the battery will get totally charged.
  • No distinction with totally different energy adapters.
  • The charging course of and time appears to be completely regular.
  • No distinction with or with out third celebration {hardware} linked.
  • SMC / PRAM reset doesn’t make a distinction.
  • Virus and malware test damaging.
  • Mac HD drive checks all good, no issues, no restore was required.
  • Solely when operating in Protected mode, the Mac works nicely underneath any energy provide and cost situation.
  • Temperatures for battery, CPU and GPU in addition to associated fan speeds are all regular underneath any situation, additionally when the issue happens.
  • Over night time I’m leaving the Mac in sleep. It appears that evidently the Mac shuts down at occasions robotically, however than additionally reboots by itself since there’s a message within the morning that the exterior drive was not ejected appropriately.

My finest guess is an inside vitality provide problem, however I don’t know the right way to proceed from right here. Any assistance is vastly appreciated. Thanks everybody prematurely.

UPDATE

  • Ran the Battery fully empty.
  • Recharged after that totally.
  • Carried out SMS / PRAM reset earlier than restart.
  • Surprisingly the battery Well being (coconut) went from 100% to 101,2%
  • The utmost capability went from 5900mAh (which can be the design capability) to 5971mAh.
  • Drawback stays the identical and happens solely with full battery and charger hooked up.

UPDATE

Listed below are the launchdaemons: ls -l /Library/LaunchDaemons; kmutil showloaded | grep -v com.apple
complete 40
-rw-r–r– 1 root wheel 647 Dec 27 22:20 com.crystalidea.macsfancontrol.smcwrite.plist
-rw-r–r– 1 root wheel 886 Might 1 2022 com.displaylink.displaylinkmanager.plist
-rw-r–r– 1 joerg wheel 568 Mar 10 2011 com.microsoft.workplace.licensing.helper.plist
-rw-r–r– 1 root wheel 829 Dec 28 11:25 com.wdc.WDPrivilegedHelper.plist
-rw-r–r– 1 root wheel 833 Dec 27 18:38 jp.co.canon.MasterInstaller.plist
-bash: kmutil: command not discovered

Replace
New Terminal outcomes:
ls -l /Library/LaunchDaemons; kextstat -l | grep -v com.apple
complete 40
-rw-r–r– 1 root wheel 647 Dec 27 22:20 com.crystalidea.macsfancontrol.smcwrite.plist
-rw-r–r– 1 root wheel 886 Might 1 2022 com.displaylink.displaylinkmanager.plist
-rw-r–r– 1 joerg wheel 568 Mar 10 2011 com.microsoft.workplace.licensing.helper.plist
-rw-r–r– 1 root wheel 829 Dec 28 11:25 com.wdc.WDPrivilegedHelper.plist
-rw-r–r– 1 root wheel 833 Dec 27 18:38 jp.co.canon.MasterInstaller.plist
15 0 0xffffff7f80c5b000 0x10000 0x10000 com.displaylink.driver.DisplayLinkDriver (4.3 (206)) 21BA08D2-055E-380E-B526-1798079CF68D <14 12 5 4 3>

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