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Current leakage/electric shock while charging

I just own the Macbook Pro Retina Display for a few days and everytime I'm trying to charge it with the supplied charger, the metal casing has feel of electrical shock! I encountered this at all location regardless of power sources, from various countries in hotel and at home.


If I use the power plug adapter that has 3 pins adapter with extension cable, it will eliminate the problem as it has ground contact on the adapter. However, the 3 pins or 2 pins adapter that direct attach to the power adapter without extension cable does not come with ground contact. I would not want to bring the extension cable everywhere.


I approached Genius Bar but was told that it is normal. I couldn't accept the answer as this "normal" condition is greatly impacting Apple product user experience! I'm ok if Apple could replace my 3 pins adapter with a grounded pin and stay with the problem with 2 pins but not asking me to accept the fact that "it is like that, we can't do anything" or a defective product.

MacBook Pro with Retina display, OS X Mountain Lion (10.8.2)

Posted on Sep 23, 2012 12:31 AM

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Posted on Sep 26, 2017 7:14 PM

I'm facing the same problem in the united Arab Emirates on the iPad I just two days ago from Carrefour.

Except the electricity leakage also I found the charger is getting hot and hotter.

I request a replacement, unfortunately got rejected so I asked for a check up in the service center, that will take me 2 weeks' time.

From iPhone 4 I'm started to stay with apple, now I felt the decision wasnt right.

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<Edited by Host>

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Question marked as Best reply

Sep 26, 2017 7:14 PM in response to nikhilpadaya

I'm facing the same problem in the united Arab Emirates on the iPad I just two days ago from Carrefour.

Except the electricity leakage also I found the charger is getting hot and hotter.

I request a replacement, unfortunately got rejected so I asked for a check up in the service center, that will take me 2 weeks' time.

From iPhone 4 I'm started to stay with apple, now I felt the decision wasnt right.

**********
<Edited by Host>

Nov 6, 2012 5:12 PM in response to casper-tech

Hi Casper-Tech


I am also the owner of the new retina display macbook pro and just few days after the purchase, i realised that it passes me electricity shock whenever I glide my fingers on the aluminium chasis body, especially the metal next to where we plug in out power (below the screen).


This happens when I use the 3 pin plug directly to the magsafe 2 whilts this problem is gone when I use the extension cable.


I have contacted Apple Care and they also said that this EXTREMELY WEIRD phenomenon is normal with the 3 pin plug as there is no grounding on the plug while the extension cable does have it.


I also realised that there is a difference between the 3 pin plug and extension cable, the latter has 0.5 A less fuse compared to the extension cable. Maybe this has caused the leakage of the electric current.


Meanwhile, I just intend to bring the machine and the plug to Apple Service Centre to have it look at and check whether there is a damage on my macbook pro.


If you feel unsatisfied/uncomfortable with this issue, you can get yourself a 3 pin plug with higher fuse rating or you can ask for a refund. That was what the Genius Bar suggested me.


Cheers. I bet there are many people with this problem but they just don't realise it yet.

Oct 14, 2013 6:38 AM in response to nikhilpadaya

Hi Nikhilpadaya.

I have confirmed with Apple technician. There is nothing wrong with the 2 pin plug (travel cable which is the shorter one). It will cause the macbook to conduct electricity as the plug has no ability to transfer excess electricity to the ground. However, if you use the long cable provided in the box (not for travel), the issue of static electricity on the metal part of the macbook will be gone.


Hope it helps to solve your problem.


Cheers.

Oct 19, 2013 9:41 AM in response to ranz.k

well, this maybe true or convincing but I've unplugged the power source.

I have an external hard drive which is connected through a thunderbolt cable. This hard drive is connected to an outlet and standard has no ground plug and I still get this problem on an electrical current through my body, my girlfriend touches my back and feels electricity.


I dont think this is normal as her laptop does not do this. Her laptop needs a power source which is two pronged. I never seen a nuetral outlet in Korea.


I mean if its a ground issue how come other laptop brands do not do this severely??

Oct 19, 2013 11:21 AM in response to casper-tech

As Apple told you, it is normal - whether you accept it, or not - and the sensation can be alleviated using the 3-prong AC power adapter cable plued into a properly-grounded AC outlet.


"It will cause the macbook to conduct electricity as the plug has no ability to transfer excess electricity to the ground. However, if you use the long cable provided in the box (not for travel), the issue of static electricity on the metal part of the macbook will be gone."


There is neither "excess", not "static" electricity.

Current leakage/electric shock while charging

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