Apple 85W MagSafe Power Adapter (for 15- and 17-inch MacBook Pro)

  • Overview

    The 85 Watt MagSafe Power Adapter features a magnetic DC connector that ensures your power cable will disconnect if it experiences undue strain and helps prevent fraying or weakening of the cables over time. In addition, the magnetic DC helps guide the plug into the system for a quick and secure connection.

    When the connection is secure, an LED located at the head of the DC connector will light; an amber light lets you know that your portable is charging, while a green light tells you that you have a full charge. An AC cord is provided with the adapter for maximum cord length, while the AC wall adapter (also provided) gives users an even easier and more compact way to travel.

    Designed to be the perfect traveling companion, the adapter has a clever design which allows the DC cable to be wound neatly around itself for easy cable storage.

    This power adapter recharges the lithium polymer battery while the system is off, on, or in sleep mode. It also powers the system if you choose to operate without a battery.

    Compatible with 15- or 17-inch MacBook Pro.

    Not sure if this is the right power adapter for your Mac?

    See this article for more details about choosing the right one.

    Knowing which specific Mac model you have is important. If you are running OS X Lion (10.7) or later go to the “” menu at the top left of your screen, choose “About this Mac” then click the “More Info...” button. Your Mac model and generation will be displayed.

    If you are running an earlier version of OS X, you can enter your serial number here to find out which model you have.

  • 1.5 Average
    1 out of 5 stars
    Number of stars Percentage Number of reviews
    • 2.0 out of 5 stars

      Better, but still not good engineering

      I thought the magnetic connection would solve the problem with my previous Powerbook cord fraying. It didn't. 18 months, and I'm having to wiggle the cord aroun I thought the magnetic connection would solve the problem with my previous Powerbook cord fraying. It didn't. 18 months, and I'm having to wiggle the cord around to get power. Of course, Apple will sell me another one for $79, when my problem is that $1 worth of wire broke. Here's an idea: why not make the portion of the cable that attaches to the transformer detachable? Then when the connector frays, as it inevitably will, you could buy a $10 cord instead of paying $79 for the whole power adapter. But I guess that would eliminate a big source of profit for Apple.

      • Written by John G from Bowie

      6106 of 6593 people found this useful

      Is this review useful?Better, but still not good engineering

    • 1.0 out of 5 stars

      Dear Apple

      Dear Apple - stop being stupid. For such a great engineering company, why can't you get the obvious things fixed. These cords fray at the connector. ALL of them Dear Apple - stop being stupid. For such a great engineering company, why can't you get the obvious things fixed. These cords fray at the connector. ALL of them do. Sometimes at the power brick, sometimes at the Mac end. Then I have to go spend 80 bucks for another adapter - when all I really need is the cord. So do the right thing, and put a MagSafe connector on BOTH ends of the cord, and a MagSafe jack on the side of the power brick just like the one on the side of the computer. Then, I could (1) disconnect the cord completely from the adapter when it's in my bag, and not have to worry about the cord getting bent and broken where it connects to the power brick, (2) could have my choice of cord lenghts - maybe a short one for my desk and a long one when I travel, and (3) I could replace JUST THE CORD if it got damaged or worn, for something like 5 or 6 bucks instead of 80. What do you think? Would it be so hard to do?

      • Written by Brad F from Lawrence

      4550 of 4647 people found this useful

      Is this review useful?Dear Apple

    • 2.0 out of 5 stars

      Yes for Unibody, No for older MBP's

      Own Early 2008 MBP and Late 2009 MBP. Works on the unibody, does not on my early 2008. The port on the new MacBooks are smaller and more shallow, this charger Own Early 2008 MBP and Late 2009 MBP. Works on the unibody, does not on my early 2008. The port on the new MacBooks are smaller and more shallow, this charger reflects this change and will not make contact with older ports found on non-unibody. Buyer beware, save yourself the hassle and find an 'I" MagSafe charger if you have a non-unibody.

      • Written by Steven R from Whitby

      1641 of 2134 people found this useful

      Is this review useful?Yes for Unibody, No for older MBP's

    • 1.0 out of 5 stars

      Fraying still a huge problem

      These adaptors still fray where the cord connects to the base. They're awful. I made up my mind last time that I would be very gentle with my adaptor and this w These adaptors still fray where the cord connects to the base. They're awful. I made up my mind last time that I would be very gentle with my adaptor and this wouldn't happen, but even though I babied it, it came apart. It's now frayed and crackles and pops-- this has to be a fire hazard, right? By contrast, I have very few broken conventional power supplies for other products I buy, including ones that come with extremely cheap feeling adaptors. Why does a $15 power supply last forever while Apple's $80 one lasts about a year?

      • Written by Louis G from San Francisco

      Is this review useful?Fraying still a huge problem

    • 1.0 out of 5 stars

      Terrible product

      I literally will not buy Apple computer products because of these cords. We (consumers) have got to do something so that they (Apple) hear us. NEVER APPLE!!!

      • Written by Rod D from Morristown

      Is this review useful?Terrible product

    • 1.0 out of 5 stars

      These MagSafe Chords Fray And Crack

      My 85w chord for MacBook Pro frayed in several spots. I covered with electrical tape. Wasn't long before a 3rd of it was covered with tape. Finally stopped work My 85w chord for MacBook Pro frayed in several spots. I covered with electrical tape. Wasn't long before a 3rd of it was covered with tape. Finally stopped working. My chord for the MacBook Air is doing the same thing. $79.00 for a new one is a big expense. I urge Apple to stop making these low-quality chords. They should last for as long as you have the computer, at the very least.

      • Written by James B from Atlanta

      3 of 3 people found this useful

      Is this review useful?These MagSafe Chords Fray And Crack

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