*Solved* Macbook Pro Unibody Electrostatic Issue

By Jiasen Low On January 23, 2012 Under Apple

Previously I didn’t find there is any electrostatic issue on my old Macbook white, especially since it is plastic casing, won’t conduct any static electric. However, on the Macbook Pro aluminum unibody, it is not the case. It becomes very obvious “weird” feel when I rest my wrists on it.

After some investigation, I notice the direct plug connector to the Apple MagSafe adapter is plastic, this means that it is not grounded at all! But lucky the extended cord connector at least is grounded. So now onwards, I will be using the extended cord.

Not all Macbook Pro Unibody users will experience this, unless you 1.)using the direct plug 2.)using at countries with 220V power supply.

This is the direct plug I mentioned. It doesn’t connect to the adapter ground pin. Apple should recall this back.

The extended cord comes with metal connector to connect the 3rd ground pin.

Apple has a good design sense, the ground pin is well disguised to securely hook up the connector.

If any of you have anything you’d like to add, please contribute by commenting below. Thanks!