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 up; 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 lead is provided with the adapter for maximum lead length, while the AC wall adapter (also provided) gives users an even easier and more compact way to travel.

    Designed to be the perfect travelling companion, the adapter has a clever design that 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

      6175 of 6662 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

      4657 of 4754 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

      1655 of 2151 people found this useful

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

    • 1.0 out of 5 stars

      The Magsafe Power Adapters are total Junk!

      I have used my Macbrook Pro very infrequently yet this power adapter has already broken. It crackles at the source of connection and goes off with the slightes I have used my Macbrook Pro very infrequently yet this power adapter has already broken. It crackles at the source of connection and goes off with the slightest movement of the cord. My next computer will not be an Apple unless this gets fixed. Very disappointed.

      • Written by Margaret F from Glen Ellyn

      1 of 1 people found this useful

      Is this review useful?The Magsafe Power Adapters are total Junk!

    • 1.0 out of 5 stars

      Consumable

      Expect to go through as many of these as you go through toner or inkjet cartridges. This is basically the disposable/consumable part of owning a Mac laptop. The Expect to go through as many of these as you go through toner or inkjet cartridges. This is basically the disposable/consumable part of owning a Mac laptop. The engineering on the connector is much worse than you'd find on a Lenovo, and the newer MagSafe 2's aren't much better. It's amazing with everything else being so high quality that Apple can't solve this.

      • Written by Samuel K from Tinton Falls

      3 of 3 people found this useful

      Is this review useful?Consumable

    • 1.0 out of 5 stars

      Life long customer put off because of this charger.

      I've gone through 3 of these poorly-made chargers. The first one's cord frayed. The second one's cord frayed. The third one shorted and was determined to be I've gone through 3 of these poorly-made chargers. The first one's cord frayed. The second one's cord frayed. The third one shorted and was determined to be "user damage" after 2 months of normal use. None of them were replaced by Apple. All Genius employees told me that these product faults were my own doing. A short -- an electrical fault -- was my doing. This charger will break. It will. There is no getting around it. Even if you never touch it, never unplug it, never move it, it will break. Be prepared to spend another $95 on a new one within 3 months of purchase.

      • Written by Vincent S from Kirkland

      5 of 5 people found this useful

      Is this review useful?Life long customer put off because of this charger.

  • Answers from the community