Apple 45W MagSafe Power Adapter for MacBook Air

  • Overview

    The 45-Watt MagSafe Power Adapter for MacBook Air 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.

    Redesigned specifically for MacBook Air, the adapter is the perfect travelling companion. It 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 only with MacBook Air with MagSafe Power Port.

    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

      Works Fine - BUT PRICE IS RIDICULOUS

      I've got a MacBook Air 13" (2011) that I feel is the finest travel computer for a businessman ever invented. I love this little workhorse. Also, the power ada I've got a MacBook Air 13" (2011) that I feel is the finest travel computer for a businessman ever invented. I love this little workhorse. Also, the power adapter on mine works just fine ... no problems. Instead of unplugging every time I hit the road, I thought it would be a good idea to buy a spare for my computer bag. Wrong! $79.95? Is this someone's idea of a joke? Eighty bucks for a power adapter? Sure the cell phone manufacturers have run this scam for years, refusing to standardize on a plug configurations/power ratings so that the buyer is forced to buy yet another power adapter (I've got about twenty of them sitting in a drawer). But those pieces of junk are only $20 or $30. $80? For what? I've got AppleCare, so I'll just keep on plugging in and unplugging the one adapter I have until it dies, then you can replace it for free. Really, you folks at Apple build the coolest stuff on earth, but you do need to re-think your policy of over-charging for the small stuff.

      • Written by Richard G from PITTSFORD

      1414 of 1495 people found this useful

      Is this review useful?Works Fine - BUT PRICE IS RIDICULOUS

    • 1.0 out of 5 stars

      4 months old, already failing!

      I'm a new Apple person, love the MacBook Air! But the power supply is already intermittent. It is under warranty, but they will not pay me for the half-day I wi I'm a new Apple person, love the MacBook Air! But the power supply is already intermittent. It is under warranty, but they will not pay me for the half-day I will spend going to the Apple store to get something that should last longer than the computer!

      • Written by Stephen M from Dickson

      778 of 900 people found this useful

      Is this review useful?4 months old, already failing!

    • 2.0 out of 5 stars

      Afraid to Move My Computer

      I have only had my MacBook Pro for about 2 months, and my power cable is starting to fail. I can't move my computer or the connection is broken between my power I have only had my MacBook Pro for about 2 months, and my power cable is starting to fail. I can't move my computer or the connection is broken between my power cable and my computer.

      • Written by Judy C from Portage

      757 of 876 people found this useful

      Is this review useful?Afraid to Move My Computer

    • 2.0 out of 5 stars

      Poor quality for its price

      I got my macbook air 11' at 2012 as the travel laptop to replace the heavy Mac Pro. The Air still works perfectly without any problem. Love it! However, my thir I got my macbook air 11' at 2012 as the travel laptop to replace the heavy Mac Pro. The Air still works perfectly without any problem. Love it! However, my third adapter is totally dead today, and I need to buy the forth one! The second one is free from apple, since the first one is dead after only half-year using. After that I need to pay these poor quality adapter by myself. I really believe this adapter has some design issue. It is not make sense that the adapter has much shorter life than the laptop itself.

      • Written by Jie G from Providence

      Is this review useful?Poor quality for its price

    • 1.0 out of 5 stars

      Garbage---and way too expensive to replace.

      These adapters are poorly designed and will commonly fail after a few years. While frustrating, I might be willing to purchase a replacement from Apple if they These adapters are poorly designed and will commonly fail after a few years. While frustrating, I might be willing to purchase a replacement from Apple if they were reasonably priced at $25. Instead I'll be turning to Amazon, in hopes that I can find something that will actually work, as $80 is just plain insulting. Shame on you Apple.

      • Written by Mark R from Thousand Oaks

      Is this review useful?Garbage---and way too expensive to replace.

    • 1.0 out of 5 stars

      Worse than 1 star

      I have had a Macbook Air since mid-2011, and every year I have had to replace this power supply (five so far, and tomorrow I will go into the store and get a si I have had a Macbook Air since mid-2011, and every year I have had to replace this power supply (five so far, and tomorrow I will go into the store and get a sixth). Working out of the office (as you would expect on a laptop), the laptop and supply goes in and out of my bag daily, but I am VERY careful with these, more so that any other electrical device I have ever owned, but still it frays where the cord enters the power supply. I now consider this the yearly GBP5 monthly fee I need to pay for using my Macbook (which it works out to cost me).

      • Written by Andrew L from London

      1 of 1 people found this useful

      Is this review useful?Worse than 1 star

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