Macbook 12" "vibration"?

Zeebedy · 13 Nov 2018 at 15:45

Hey guys,

Recently noticed when I have my MacBook on charge, there is a little vibration like sensation when touching the chassis?

Soon as the Mac is unplugged it disappears :confused:

dirtybeatfreak · 13 Nov 2018 at 16:12

It's due to grounding of your PSU. Nothing wrong with it, so don't worry

Feek · 13 Nov 2018 at 16:12

Yup, exactly as said above. The adapter doesn't come with a grounded lead any more.

Zeebedy · 13 Nov 2018 at 16:40

Cheers guys, just wanted to make sure it wasn't going to electrocute me one day lol...

Phemo · 14 Nov 2018 at 14:57

Yep it's normal. The 3 pin plug that slots onto the power brick doesn't have a ground pin connected whereas the extension cable variant that came with older MacBooks does. This article explains why and has pics of what I mean: http://garethhayes.net/apple-power-plug-not-earthed/

It's normal and won't cause you any harm. Just a bit weird when you're not expecting it but if you want to stop it then get one of the Apple extension cable plugs.

MrRockliffe · 14 Nov 2018 at 15:32

It can tingle a little if you ground yourself on something, especially if you're skin has any moisture on it

Feels like licking a 9V battery.

PiKe · 14 Nov 2018 at 15:37

MrRockliffe said:
It can tingle a little if you ground yourself on something, especially if you're skin has any moisture on it

Feels like licking a 9V battery.

Stop licking your laptop?

MrRockliffe · 14 Nov 2018 at 15:52

PiKe said:
Stop licking your laptop?