MBP M1 - plugged in and occasionally, it doesn't charge and then it does!!!

maz kanata Said:

"MBP M1 - plugged in and occasionally, it doesn't charge and then it does!!!: I usually work with my MBP plugged in and at 100%. However, in the last week I've noticed something. [...]I get the charging 'bloop' sound, the menu bar icon changes to charging, and still it gradually loses charge.[...]"

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Report back if anything here helps...

Troubleshooting Mac Charge:

A. Black Mac Screen:

Go Here: If your Mac doesn't Turn On or Start Up - Apple Support

B. Mac Power Issues:

Try a New Charger:

If it is currently charging from a charger, then use a new charger:

• Power & Cables - Mac Accessories - Apple - Select "Mac Compatibility" on the left
• Find the right power adapter and cable for your Mac notebook - Apple Support

C. A Few Links to Refer to Power:

• If your Mac doesn't Turn On - Apple Support

• How to Turn your Mac On or Off - Apple Support

• About Mac Notebook Batteries - Apple Support

• Charge the MacBook Pro Battery - Apple Support

• If your Mac Battery won't Charge - Apple Support 

maz kanata Said:

"MBP M1 - plugged in and occasionally, it doesn't charge and then it does!!!: I usually work with my MBP plugged in and at 100%. However, in the last week I've noticed something. [...]I get the charging 'bloop' sound, the menu bar icon changes to charging, and still it gradually loses charge.[...]"

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Troubleshooting a Mac in a Boot Loop:

Being continuous, it seems there is an error in the caches. So, refer to the following...

A. Boot in Safe Mode:

In Safe Mode, Login Items do not run at login, certain preferences are set aside, and damaged system files are then reset. So, once booted in to Safe Mode, wait 30 seconds, and then boot up normally, attempting another update install. For instructions, go here: How to Use Safe Mode on your Mac - Apple Support

B. Re-Mount the Drive:

Boot into Recovery Mode (Intel or Silicon) . You need to click the “Mount’ button to proceed. So, select the drives, and then click "Mount" Try rebooting once more. If of no success, then click unmount button, and then the mount button. Try rebooting once more. It looks dulled-out. So, if you cannot click it, then click the First Aid button to fix this volume.