Apple 45W MagSafe Power Adapter for MacBook Air
Apple 45W MagSafe Power Adapter for MacBook Air
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; 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.
Redesigned specifically for MacBook Air, the adapter is the perfect traveling companion. It 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 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.
Answers from the community
can I use a 85W on my macbook 13"?
- Asked by Andy G from Newfane
- on 17-Jun-2010
Yes, the computer knows how much power to draw, and using an 85W adapter on your 13inch MBPro will b Yes, the computer knows how much power to draw, and using an 85W adapter on your 13inch MBPro will be perfectly safe.
- Written by Ryan J from Orlando
- on 26-Jun-2010
Will it hurt my macbook pro if i leave the power supply plugged in to the wall socket and in to my 2011 Macbook Pro at all times (mostly)?
- Asked by Brook F from New Orleans
- on 25-Sep-2011
STANDARD MAINTENANCE: For proper maintenance of a lithium-based battery, it’s important to keep the STANDARD MAINTENANCE: For proper maintenance of a lithium-based battery, it’s important to keep the electrons in it moving occasionally. Apple does not recommend leaving your portable plugged in all the time. An ideal use would be a commuter who uses her notebook on the train, then plugs it in at the office to charge. This keeps the battery juices flowing. If on the other hand, you use a desktop computer at work, and save a notebook for infrequent travel, Apple recommends charging and discharging its battery at least once per month. LONG-TERM STORAGE: If you don’t plan on using your notebook for more than six months, Apple recommends that you store the battery with a 50% charge. If you store a battery when it’s fully discharged, it could fall into a deep discharge state, which renders it incapable of holding any charge. Conversely, if you store it fully charged for an extended period of time, the battery may experience some loss of battery capacity, meaning it will have a shorter life. Be sure to store your notebook and battery at the proper temperature.
2 Answers(Will it hurt my macbook pro if i leave the power supply plugged in to the wall socket and in to my 2011 Macbook Pro at all times (mostly)?)
- Written by GARY S from Jacksonville Beach
- on 2-Oct-2011
Why is there a difference in the color indicator on my 85w charger? Sometimes it's green and sometimes it's orange/yellow?
- Asked by Lois P from San Francisco
- on 3-Apr-2012
Green = Battery full Orange/Yellow = Battery charging
- Written by Chris C from grangemouth
- on 12-Apr-2012
I am traveling to Amsterdam & Barcelona - need info about Voltage, not plug adapters. Will iPhone charger work with the Euro voltage (220V, 50Hz)?
- Asked by Stephen F from Buffalo
- on 12-Sep-2015
Well folks, I have returned from Europe (Amsterdam & Barcelona) and I am happy to report that my Mag Well folks, I have returned from Europe (Amsterdam & Barcelona) and I am happy to report that my Magsafe power adapter for my MacBook does, indeed, function on European voltage (220 VAC, 50 Hz). That is, once I acquired appropriate plug adapters. Those iPhone & iPod 5W USB wall chargers also worked fine with plug adapters. And, finally, Apple makes a European USB charger, Model # A1400. Not sure where to buy them in the States.
3 Answers(I am traveling to Amsterdam & Barcelona - need info about Voltage, not plug adapters. Will iPhone charger work with the Euro voltage (220V, 50Hz)?)
- Written by Stephen F from Buffalo
- on 2-Nov-2015
I'm taking my MacBook to Argentina where they have 220 wat. Do I need a power converter or transformer?
- Asked by joshua p from whitesburg
- on 28-Feb-2010
No. I just took mine to England where they also have 220s. There is a converter built in to the ad No. I just took mine to England where they also have 220s. There is a converter built in to the adapter already. You just need the right plug to snap on to the front.
- Written by MEGHAN W from null
- on 4-Mar-2010
Can I use the 45W adapter to power my 13" MacBook Pro?
- Asked by Sarah B from South Thomaston
- on 28-Dec-2009
It does work though. My friend has a 13" MacBook Pro and we have charged it using my 45W adapter th It does work though. My friend has a 13" MacBook Pro and we have charged it using my 45W adapter that came with my MacBook Air.
- Written by Frank H from Houston
- on 7-Oct-2011