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MacBook does not wake up when not plugged in (battery at 50 percent)

My 2017 MacBook Pro regularly does not wake up from sleep mode, although the battery is around 50 percent. It just shows a red "plug in" symbol. When I plug it in for a second, it wakes up and functions normally, even when unplugged again after a few seconds.


Any help would be much appreciated, as having to "kickstart" the MacBook (i.e. the need for power and a power adapter) is very inconvenient. Thank you!

MacBook Pro 13″, macOS 11.4

Posted on Jun 6, 2021 2:50 AM

Reply
Question marked as Top-ranking reply

Posted on Jun 6, 2021 4:18 AM

Go step by step and test.


1. Reset PRAM:  Reset NVRAM or PRAM on your Mac - Apple Support

     Settings that can be stored in NVRAM include sound volume, display resolution, startup-disk selection, time zone, 

     and recent kernel panic information. 

     The settings stored in NVRAM  depend on your Mac and the devices that you're using with your Mac.


2. Reset  SMC:   How to reset the SMC of your Mac - Apple Support   Choose the appropriate method.

    Quote:

    Resetting the system management controller (SMC) can resolve certain issues related to power, battery, fans,

    and other features.


3. Startup in Safe mode. https://support.apple.com/en-gb/HT201262

    To leave Safe Mode, choose “Restart” at the bottom.

    Quote:

     Safe mode prevents your Mac from loading certain software when it starts up, including login items, 

     system extensions not required by macOS,

     and fonts not installed by macOS. It  also does a basic check of your startup disk, 

     similar to using First Aid in Disk Utility

     And it deletes some system caches, including font caches and the kernel cache, 

     which will be created again automatically as needed.




4. Contact Apple.


    If steps posted above do not help,


    Click inside the box to choose an option. contact Apple Support.

Similar questions

1 reply
Question marked as Top-ranking reply

Jun 6, 2021 4:18 AM in response to iIdared

Go step by step and test.


1. Reset PRAM:  Reset NVRAM or PRAM on your Mac - Apple Support

     Settings that can be stored in NVRAM include sound volume, display resolution, startup-disk selection, time zone, 

     and recent kernel panic information. 

     The settings stored in NVRAM  depend on your Mac and the devices that you're using with your Mac.


2. Reset  SMC:   How to reset the SMC of your Mac - Apple Support   Choose the appropriate method.

    Quote:

    Resetting the system management controller (SMC) can resolve certain issues related to power, battery, fans,

    and other features.


3. Startup in Safe mode. https://support.apple.com/en-gb/HT201262

    To leave Safe Mode, choose “Restart” at the bottom.

    Quote:

     Safe mode prevents your Mac from loading certain software when it starts up, including login items, 

     system extensions not required by macOS,

     and fonts not installed by macOS. It  also does a basic check of your startup disk, 

     similar to using First Aid in Disk Utility

     And it deletes some system caches, including font caches and the kernel cache, 

     which will be created again automatically as needed.




4. Contact Apple.


    If steps posted above do not help,


    Click inside the box to choose an option. contact Apple Support.

MacBook does not wake up when not plugged in (battery at 50 percent)

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