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

      6007 of 6493 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

      4387 of 4482 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

      1626 of 2117 people found this useful

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

    • 1.0 out of 5 stars

      Atypical

      Unlike most Apple products, this one is absolute junk. It features a poor design and the small cord twists and breaks in just a short time. The replacement pr Unlike most Apple products, this one is absolute junk. It features a poor design and the small cord twists and breaks in just a short time. The replacement price? I could only laugh. I'm on my third one in as many years and am disgusted.

      • Written by ROBERT B from TULSA

      Is this review useful?Atypical

    • 1.0 out of 5 stars

      Dreadful product. Overheats, cable frays, arguably dangerous.

      It pains me to write this because I Iove my Macbook Pro, I think it's a spectacularly elegant and functional piece of equipment, it's just that the power supply It pains me to write this because I Iove my Macbook Pro, I think it's a spectacularly elegant and functional piece of equipment, it's just that the power supply is a very long way from the same standard. These supplies are arguably Apple's worst products. Must make a fortune on them, because they're exorbitantly priced and clearly designed to be as un-fixable as possible and to fail very quickly. In warm weather, if laid flat on a carpet then they get *very* hot, suggesting some rather marginal thermal management, but that's really the least of their problems. The co-ax cable from the charger to the computer is sleeved in a material that rapidly frays at both ends, the last one I had felt like a silicone rubber that's been used past its sell-by date, stiff and brittle (And yes, it was a genuine Apple one, unless they're selling knock-offs over the counter in Apple stores) - like many others, I'm now about to have to buy my third for the same laptop - admittedly, the latest one finally died when I dropped it, but were I less adept at repairing these things it would have died ages ago - I've had to re-solder the lead at both ends (it's not easy to dismantle the magsafe end, but with the 90 degree metal sleeved ones it can be done) and I had to remove a frayed section that was arcing, a real fire hazard. I routinely have to replace the strain relief at both ends of the coax, usually within a few months of purchase - I've taken to building a strain relief at the "brick" end that has the cable exiting towards one of the fold-out lugs, so it doesn't get the 90 degree kink in it, but the other end always frays too. The mains lead sleeve always works its way out of the strain relief at the brick end, too. On the plus side, with these power supplies I think Apple have single-handedly created a market for that silicone rubber putty "sugru" stuff... I'm not heavy on my gear; I have Dell power supplies with similar diameter cables that are still absolutely fine after many years, I've never had an Apple one last as much as a year without needing some kind of (difficult) repair. Tempted by the aftermarket ones, as I'm fed up with handing sixty quid a time to Apple for something that we all know is no good, but, though the cables are unlikely to be worse, I have my doubts about the electronics in the knock-offs.

      • Written by C W from Cardiff

      1 of 1 people found this useful

      Is this review useful?Dreadful product. Overheats, cable frays, arguably dangerous.

    • 1.0 out of 5 stars

      I am ordering my 3rd in 3 years!

      Can't believe it's broken again! The worse product from Apple and it is too expensive.

      • Written by Korapin R from Las vegas

      4 of 4 people found this useful

      Is this review useful?I am ordering my 3rd in 3 years!

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