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Macbook pro is giving me electric shocks

I purchased this macbook about 2 years ago and have never experienced any issues like this but when my hands touch the macbook (even the keyboard) I can feel tingling shock. I think this is only happening when the charger is plugged in. Can anyone help?

MacBook Pro, OS X El Capitan (10.11.6)

Posted on Oct 12, 2016 1:34 AM

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Question marked as Best reply

Posted on Oct 12, 2016 2:19 AM

Does your MagSafe power adapter have a long power cord with grounded

plug, instead of the simple toggle head plug-in that has no ground prong?


MacBook Pro Important product info:

https://static.bhphotovideo.com/lit_files/96266.pdf


Are the tiny connector pins in each side, the MagSafe adapter and the

MacBook Pro, clean of debris and not dusty or have stuff stuck in them?

These connector pins should be clean. See these support articles:


• Apple Portables: Troubleshooting MagSafe adapters - Apple Support

• About Mac notebook batteries - Apple Support


For all my portable Mac computers, (have four adapters, three computers)

all of mine have and use the long cable to replace the simple toggle head

as this keeps the MagSafe (and older adapter for PowerBook/iBookG4) so

it won't come unplugged from the wall socket. The Cable is recommended.

Although it won't win points for portability; a coiled one does fit in my pack.


• Apple AC Adapter repair guide - iFixit:

https://www.ifixit.com/Device/Apple_AC_Adapter


You may need to set an appointment with an official Apple store genius

to have them inspect the item. You may need to get replacement adapter.


{If they haven't a replacement one in stock -- they are available online...

examples: https://eshop.macsales.com/search/magsafe%20adapter}



There are some references to a metal bodied macbook computers and an

electrical shock; even a few Apple support articles, among search results:

https://duckduckgo.com/?q=magsafe+adapter+power+leaks+to+metal+macbook+pro+causes+shock&ia=web


Anyway, I'd suggest to inspect and have some expert opinion on the issue

plus if the computer has an AppleCare extended plan in effect, it may be

the issue find a resolution if brought to the attention of an Apple genius...


A 'short' may involve an internal problem that may require service tech repair.

Or if only adapter,you should be able to get a replacement MagSafe there.


{For models older than several years, the Apple store may not have them in

stock; so suppliers such as OWC macsales may have one that matches.}


In any event...

Good luck & happy trails! 🙂

4 replies
Question marked as Best reply

Oct 12, 2016 2:19 AM in response to Gracesayshi

Does your MagSafe power adapter have a long power cord with grounded

plug, instead of the simple toggle head plug-in that has no ground prong?


MacBook Pro Important product info:

https://static.bhphotovideo.com/lit_files/96266.pdf


Are the tiny connector pins in each side, the MagSafe adapter and the

MacBook Pro, clean of debris and not dusty or have stuff stuck in them?

These connector pins should be clean. See these support articles:


• Apple Portables: Troubleshooting MagSafe adapters - Apple Support

• About Mac notebook batteries - Apple Support


For all my portable Mac computers, (have four adapters, three computers)

all of mine have and use the long cable to replace the simple toggle head

as this keeps the MagSafe (and older adapter for PowerBook/iBookG4) so

it won't come unplugged from the wall socket. The Cable is recommended.

Although it won't win points for portability; a coiled one does fit in my pack.


• Apple AC Adapter repair guide - iFixit:

https://www.ifixit.com/Device/Apple_AC_Adapter


You may need to set an appointment with an official Apple store genius

to have them inspect the item. You may need to get replacement adapter.


{If they haven't a replacement one in stock -- they are available online...

examples: https://eshop.macsales.com/search/magsafe%20adapter}



There are some references to a metal bodied macbook computers and an

electrical shock; even a few Apple support articles, among search results:

https://duckduckgo.com/?q=magsafe+adapter+power+leaks+to+metal+macbook+pro+causes+shock&ia=web


Anyway, I'd suggest to inspect and have some expert opinion on the issue

plus if the computer has an AppleCare extended plan in effect, it may be

the issue find a resolution if brought to the attention of an Apple genius...


A 'short' may involve an internal problem that may require service tech repair.

Or if only adapter,you should be able to get a replacement MagSafe there.


{For models older than several years, the Apple store may not have them in

stock; so suppliers such as OWC macsales may have one that matches.}


In any event...

Good luck & happy trails! 🙂

Oct 12, 2016 7:14 AM in response to Gracesayshi

Please read Using Apple power adapters, cables, and duckheads with Apple products - Apple Support. If you suspect your power adapter (Mac or iPhone) is damaged or counterfeit, do not use it. Bring it as well as the Apple devices they use to an Apple Store for evaluation.


The most important point with power adapters is to be absolutely certain they are genuine Apple products, and not counterfeit. Counterfeit power adapters are as dangerous as they are abundant, and it is impossible to identify a counterfeit power adapter by inspecting its exterior case and markings. The only way to be completely certain your power adapter is genuine is to purchase it directly from Apple or an authorized reseller.


Even if the power adapters are working properly the electric sensation you may feel is common and harmless. It is far more commonly perceived with 220v systems than it is with 110v systems such as in North America. The reason for the electric sensation is that Mac's exterior case is not grounded, but is capacitively coupled to ground through its power adapter, explaining the physical sensation you perceive. As long as your Mac's power adapter is a genuine Apple product, and it is undamaged, it's harmless.


There is no regulatory requirement for a Mac's exterior case to be grounded. That also decreases its contribution to — and increases its immunity from — electromagnetic interference. That is a regulatory requirement.

Macbook pro is giving me electric shocks

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