16" Macbook Pro (M1 Max 32gb) Power Connect/Disconnect after shutdown

[HJ24]

My macbook pro keeps connecting/disconnecting from power every 2-3 seconds, and chimes under this scenario:

1) Shutdown MacOS while on battery
2) Close Lid
3) Plug into power while closed

-It continuously chimes every 2-3 seconds and the light on the power brick turns orange-off-orange-off etc. I have to open the lid, and the shutdown again for it to stop and charge normally.

 

[Realityck]

Does this have anything to do with using a power adapter extension cable you were discussing on a another thread, after a week's usage of your new 16"?

The fact that the power adapter is turning orange-off-orange-off leads one to speculate you have something AC wise amiss. Check with Apple store staff about that adapter maybe not working correctly when charging.

 

[white7561]

2021 MacBook Pro 16" MagSafe Light Flashing Amber and Power Chime Repeating During Charging When Off

Hi everyone! I just received the new 2021 M1 Pro MacBook Pro 16" yesterday. This is my first Mac and I'm experiencing what I believe might be an issue, as I can't find any information about it online. I've already charged the device to 100% with no issues. When on, charging seems to work as...

forums.macrumors.com

Seems like a bug. on one of the posts here. A user said apple confirmed this issue.

 

[Realityck]

2021 MacBook Pro 16" MagSafe Light Flashing Amber and Power Chime Repeating During Charging When Off

Hi everyone! I just received the new 2021 M1 Pro MacBook Pro 16" yesterday. This is my first Mac and I'm experiencing what I believe might be an issue, as I can't find any information about it online. I've already charged the device to 100% with no issues. When on, charging seems to work as...

forums.macrumors.com

Seems like a bug. on one of the posts here. A user said apple confirmed this issue.

Interesting thread on this issue.