Questions & Answers for Apple 45W MagSafe Power Adapter for MacBook Air
468 Questions from the Community
Does the power adapter continue to consume the same amount of energy when it is not plugged into the laptop (but still plugged into the socket)?
...or is there an energy-saving feature built in that reduces or eliminates its power usage when it's not actually charging a laptop?Best Answer:
I tested it with my killowatt meter and read 0watts when macbook fully charged or unplugged.
You will not need to use a converter, your MagSafe Power Adapter that came with your laptop will automatically regulate the 230-240 volt power that is common in the UK and throughout Europe. You will however need an adapter that will allow you to plug in your US three prong grounded plug into the standard UK 2 prong outlet. Always remember to plug the Apple MagSafe Power Adapter into the UK outlet prior to connecting it to your computer. It’s just a "good practice" safe guard against any power spikes before connecting it to your computer. I have lived in Europe, the Middle East and Asia for fir the last 5 years and have never had an issue when using the standard macbook pro power cord with the appropriate plug adapter for that region.
- Answered by Jess G from Houston
- 06 4, 10
- Flag as inappropriate Answer (I want to use my mac book 13 in England and |Ireland, do a need just an adapter plug, or do i need a converter)
Does it harm my macbook pro retina 13'' (2015) battery to keep it connected to the wall socket even after it is fully charged?
Should I disconnect the charger after the battery percentage reaches 100% or is it ok to use it after it reached 100%? Also, what is the minimum battery percentage before I start charging again? Is it bad to completely drain the battery sometimes (twice in a month)? I am sorry for the question for being so long, but I really want to optimise my mac battery. Thanks for the help in advance.Best Answer:
I'm surprised that no one ever answered your question, and i only started coming to Apple Community recently, sorry for the late notice and late reply, and hope this is still helpful to you :)
Here are the answers to your questions:
- Try not to deplete the battery as this actually harms the battery lifespan.
- charge your MacBook Pro when it has about 5-10% battery remaining, MacBook and MacBook Pro has a power management system integrated since Mac OS 10.11 El Captain, if your battery is below 10%, Mac will automatically reduce hardware performance to preserve remaining battery charge and you will start experience lag, functioning delay, longer loading / processing time. it doesn't hurt the battery itself, but the lag could drive you mad.
- Keep your Mac on the charge all the time while you use it would damage the battery? Theoretically NO.
The general technology has developed so much so as the battery technology.
Theoretically what Today's laptop would and should do is to deactivate the charging when it calibrated the charge in the battery. which means there is no more electric charge goes into the battery anymore.
From personal experience, i'm doing that all the time, i only take it off the charger when i actually take my MacBook outdoor. And my battery does exactly the same performance and duration as the first day i got it (owned my MacBook Pro for 1 and half year now)
And i never power off my MacBook Pro since Apple has done so well with Mac's power management system (way better than Windows and by miles)
But, if you aren't using the MacBook, and put it into sleep mode or shut down. then disconnect the charger. What i said above only applies to MacBook being 100% charged when you are using your MacBook or it's powered on all the time.
To be honest, the excuse of Overcharge laptop by leaving the charger connected is simply not acceptable. because this is a basic precaution that portable electronic manufacturers should have been dealt with long time ago
Yes this will work. I called Apple and verified it. I then purchased the Magsafe 85W power adapter and it works well. However , Do NOT buy the Magesafe2 power adapter for the Macbook Pro 17" A1229 though. It has the wrong interface.
Hope it helps.
- Answered by Scott G from Oakdale
- 04 18, 14
- Flag as inappropriate Answer (I have a 17 inch macbook pro model A1229, will this charger work with it?)
Can someone tell me what's included in box?
- Asked by Samir A
- 01 18, 10
- Flag as inappropriate (Can someone tell me what's included in box?)
It basically comes with a power adapter for a MacBook and Macbook Pro NOT MacBook Air and it also comes with an extension cable for the power adapter. Because the power adapter cable is quite short, however with the extension its a perfect length.
- Answered by Brian S from Los Angeles
- 01 20, 10
- Flag as inappropriate Answer (Can someone tell me what's included in box?)
From Macworld Mag 2006:
If you hold the two power supplies side by side, you’ll notice that the MacBook Pro’s is larger. That’s because the MacBook Pro uses an 85-watt power supply, while the MacBook uses a 60-watt power supply. Apple says you can use the more powerful, 85-watt power supply with a MacBook without any problems, and that in 80 percent to 90 percent of situations, you can use the MacBook’s power supply with the more-demanding MacBook Pro as well. If you’re really taxing the MacBook Pro’s processor with some heavy-duty work, the MacBook’s adapter will still be able to power the MacBook Pro—but it may not have any power left over to charge its battery.
so, yes, contrary to what everyone else has said, you can.
- Answered by Wendy S from Montgomery Village
- 11 26, 09
- Flag as inappropriate Answer (can this charger be used for a mac pro laptop if not can i have a link for a mac pro charger please)
I am going to Italy. Will my Ipad power cord convert from 220 to 120, or do a need a step down converter?
Ipad 220 to 110 adapter for EU travel
- Asked by Brian B from Omaha
- 07 3, 11
- Flag as inappropriate (I am going to Italy. Will my Ipad power cord convert from 220 to 120, or do a need a step down converter?)
It will convert automagiclly. You'll just need an adapter so the plug works. Thank you Apple, for once, not making me buy another $29 adapter to use your product!
- Answered by Ryan D from Las Vegas
- 03 3, 15
- Flag as inappropriate Answer (I am going to Italy. Will my Ipad power cord convert from 220 to 120, or do a need a step down converter?)
I have a macbook A1181, will a 60W power adapter A1184 be compatible??
- Asked by Sourima B from Newcastle Upon Tyne
- 02 8, 10
- Flag as inappropriate (I have a macbook A1181, will a 60W power adapter A1184 be compatible??)
Yes. That is what we are using at work.
- Answered by James P from Rockville
- 06 29, 10
- Flag as inappropriate Answer (I have a macbook A1181, will a 60W power adapter A1184 be compatible??)
can a 45 w magsafe be used on a 15" mac book pro retina display 2012?
- Asked by Ingrid B from Fort Lauderdale
- 02 8, 15
- Flag as inappropriate (can a 45 w magsafe be used on a 15" mac book pro retina display 2012?)
You could but it will charge very slowly and in some cases will just deliver enough power to run the macbook without any charge.
Get an 85.
- Answered by Kevin M from Houston
- 03 10, 15
- Flag as inappropriate Answer (can a 45 w magsafe be used on a 15" mac book pro retina display 2012?)
The charger for all iPod products is 5VDC (5 volts DC)
- Answered by Brian T from Saint Ann
- 01 18, 10
- Flag as inappropriate Answer (What is the dc output of the ipod shuffle's charger?)
Not at all. You might need a plug that will fit in their sockets though!
The bulky white square will do all the converting for you...
- Answered by David B from Brampton,
- 12 16, 14
- Flag as inappropriate Answer (Do I need a voltage converter for my IPad when traveling to Australia from Usa)
Yes, it will work, but you need an adapter plug ($9.99 at Radio Shack, Model: PCC-1 | Catalog #: 273-1448). New Zealand electrical grid is 240 V, 50 Hz. Written on the side of the Power Adapter is: "Input 100 - 240 V" and "50 - 60 Hz". That covers it.
Have a nice trip.
- Answered by Michael G from Honolulu
- 01 15, 10
- Flag as inappropriate Answer (will this charger work in NewZealand or will I have to use an adapter?)
If your MacBook is a 2006 to present date, you don't need a power transformer/converter. Your present Power Adapter will accept Line voltage: 100V to 240V AC and Frequency: 50Hz to 60Hz. What you will need are Plug Adapters. Go to Apple Store type in power adapters in the search box and get the Apple World Travel Adapter Kit. It includes 6 adapter plugs.
- Answered by Richard P from Melbourne
- 03 13, 10
- Flag as inappropriate Answer (If I bring the laptop to China or HongKong for bussiness trip, do I have to get a power transformer/converter)
Electrically: Apple's MagSafe adapters are labelled for AC input of "100-240V 50/60 Hz". They should work worldwide. (Mine does).
Physically: Most of Italy uses European-style two-round-pin AC sockets. There are local variations - some sockets have earth/ground connectors also, though the Magsafe adapter does not need this. You can get many converters to convert from US flat-blade mains plugs to Euro-style sockets. Best is to use the correct Euro-plug to fit directly on the MagSafe in place of (say) the US flat-blade AC plug. Second-best is to use a lead from Magsafe's own Figure-8 AC connector to the wall socket. This prevents the weight of the Magsafe dragging itself out of the wall outlet.
Air Transport: You should carry your adapters with you so that you can power-up your laptop for security at any airport you pass through.
- Answered by Gerald W
- 07 8, 11
- Flag as inappropriate Answer (240 volt compatibilty)
Just this minute opened the pamphlet with my second adapter and it says "Apple One Year Limited Warranty" on one of the four documents in the baggie.
- Answered by Eldon A from Plaistow
- 08 21, 12
- Flag as inappropriate Answer (What type of warranty is offered with the 85W MagSafe Power Adapter purchased from the Apple Store?)
I am going to the Philippines and I'm using this charger for my Macbook Pro. Can I just plug it in there directly? They use 220V and 60Hz there.
- Asked by Delbbie D from San Diego
- 03 25, 10
- Flag as inappropriate (I am going to the Philippines and I'm using this charger for my Macbook Pro. Can I just plug it in there directly? They use 220V and 60Hz there.)
Yes. All of Apple's new power adapters are designed to be World Travel friendly. Just like many other power adapters for cellular phones, etc.
Apple's power adapters will support voltages from 100-240V and 50-60Hz.
The only additional thing you will need is the International Adapter kit, so you can plug in your power supply to the given wall plug.
Does the 45W work with the 2011 MacBook Air?
I need a new power adapter for my 2011 MacBook Air because my original power adapter split open and the wires on the inside are now exposed. The charger, where it has split gets extremely hot, to the point where it burns me. So I just wanted to know whether the 45W fitted the 2011 MacBook Air. Thanks :)
- Asked by Lily C from Mylor
- 12 29, 13
- Flag as inappropriate (Does the 45W work with the 2011 MacBook Air?)
Yes, I have the mid-2011 MacBook Air 13" and 11" model and the 45W charger works.
- Answered by Jason C from Ringwood
- 01 2, 14
- Flag as inappropriate Answer (Does the 45W work with the 2011 MacBook Air?)
Are Apple power power adaptors compatible with 220V
the one shown as well as the little one
- Asked by Barbara P from Paradise Valley
- 07 23, 13
- Flag as inappropriate (Are Apple power power adaptors compatible with 220V)
Yes, my charger (a 60W) has an input range of: 100-240V and 50-60Hz. I see no reason why Apple would not make their 85W charger the exact same.
- Answered by Bradley C from Atlanta
- 07 30, 13
- Flag as inappropriate Answer (Are Apple power power adaptors compatible with 220V)
Am going to use my MacBook Pro 13-inch in France and Norway: they use 210-20 voltage and a different plug. What do I need?
- Asked by Philippe S from Washington
- 11 3, 09
- Flag as inappropriate (Am going to use my MacBook Pro 13-inch in France and Norway: they use 210-20 voltage and a different plug. What do I need?)
Just get a universal adapter plug for travel. They will usually handle all of the major interfaces in one unit. The adapter can handle any source voltage internationally from 100-240v, 50/60Hz.
- Answered by Richard S from Apo
- 01 9, 10
- Flag as inappropriate Answer (Am going to use my MacBook Pro 13-inch in France and Norway: they use 210-20 voltage and a different plug. What do I need?)