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Searching for commands to disable the charge chime, I have run both of these.

defaults write com.apple.PowerChime ChimeOnAllHardware -bool false; killall PowerChime

defaults write com.apple.PowerChime ChimeOnNoHardware -bool true;killall PowerChime

I still hear the sound. No answers here are selected and they conflict.

Can the chime be suppressed with Mojave?

  • PowerChime[49795:6932617] PowerChime: PowerChime: chime enabled by hardware: 0 PowerChime: PowerChime disabled - ChimeOnNoHardware default: 0 – Ruskes Oct 13 '18 at 3:31
  • why don't you just Rename the PowerChime.app to something else, since it only has one function you (OS X) will not miss it. – Ruskes Oct 13 '18 at 5:08
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A-HA! I know this one! I just found out recently what to do about it. I have an early 2011 MB Pro and this came up. Baffled the crud out of me. Very simple fix, really.

UNPLUG the charging cable and block from both the wall and the MacBook and just let it sit for about 2-3 minutes to discharge and, what I'm told, reset (something internal). After that, plug it in at both ends and see what happens.

(goes without mentioning this is in regards to using the stock Apple charging adapter and cable appropriate for the MacBook, of course.)

Looking/thinking back on this, I kinda jumped the gun and assumed your problem is that the periodic charge beeping continues no matter what you do, restart, etc., like what happened to me. Hope you get it sorted soon!

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In my case it did work after running this in the Terminal (I am using a USB-C monitor for powering the MacBook Pro)

defaults write com.apple.PowerChime ChimeOnNoHardware -bool true  
killall PowerChime

also this question discusses more ways to solve:

  • Awesome!! Thanks @greencrest!! Code worked perfectly, been trying to mute that dang chime for awhile now and this was a much simpler/quicker solution than I thought it'd be 😁 – Briana Duque Jul 10 at 23:29

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