Macbook Pro 85W Power Adapter - 661-3863, A1172, A1222

by Apple

Product Details

• Shipping Weight: 2.2 pounds (View shipping rates and policies)
• ASIN: B0012NYC44
• Item model number: MA938LL/A
• Average Customer Review: 3.1 out of 5 stars  See all reviews (17 customer reviews)
• Date first available at Amazon.com: October 2, 2001

Product Description

Original Portable Power AC Adapter for APPLE 15" and 17" MacBook Pro. Model: A1172, P/N: MA357LL/A, 18.5V, 4.6A, 85W AC power adapter with MagSafe magnetic power connector.Complete set with 3 prong Power Cord and Wall Plug.

Customer Reviews

Most Helpful Customer Reviews

46 of 48 people found the following review helpful:

3.0 out of 5 stars Not a genuine apple power supply, August 27, 2009

By 

Anton (United States) - See all my reviews
(REAL NAME)   

This review is from: Macbook Pro 85W Power Adapter - 661-3863, A1172, A1222 (Electronics)

Despite the fact that this item lists Apple item numbers in its title, it is NOT an apple power supply. It is a knockoff made to look very similar - the entire design, the gray type, etc.

You would think from its design that its two-pronged tip could be replaced with a grounded three-pronged receptacle, just like the apple power supply. The grounded cord that comes with Apple power supplies can be used , but it will NOT ground this unit, because the metal piece that conveys the ground in apple's unit is replaced by a plastic one in this. As a result, when you use this unit to charge an aluminum laptop you are likely to feel a funny buzzing/tickling vibration when you lightly move your fingers along the laptop's chassis, whereas you would not if it were properly grounded. This doesn't affect the computer (I don't think) but I personally find the sensation annoying.

I take off one star for lack of grounding and another for the fact that the company tries to pass it off as an Apple product, or at least makes no effort to keep a buyer from reasonably concluding (incorrectly) that it is a genuine Apple product.

Still, if these things don't disturb you it seems like a good deal. It worked fine out of the box. It remains to be seen how well it holds up.

22 of 23 people found the following review helpful:

2.0 out of 5 stars not the real thing, October 1, 2009

By 

Hedi Allameh (NYC) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Macbook Pro 85W Power Adapter - 661-3863, A1172, A1222 (Electronics)

This product does not produce the power required to run the laptop without a battery.
Meaning, it will slowly charge up a battery that has power, but if there is no battery or the battery is out of power, it does not produce the promised 80W you need for the 15" macbook pro.
Also, gets very hot and causes a strange electrical current to run through the laptop that is easily felt when touching the surface of the computer.

16 of 17 people found the following review helpful:

1.0 out of 5 stars Do not by, November 21, 2009

By 

Simone Czech (München) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Macbook Pro 85W Power Adapter - 661-3863, A1172, A1222 (Electronics)

I just got this item and only two days after using it my computer shut down completly. The computer got very hot and did not turn on any more. Only after disconnecting the charger and waiting for several hours for the computer to cool down I could turn it on again. I strongly advice you to buy the real item.