Questions & Answers for Apple 85W MagSafe 2 Power Adapter (for MacBook Pro with Retina display)
53 Questions + 90 Answers
53 Questions from the Community
From 0% battery life, mine charges up to full in approximately 2-3 hours
- Answered by Jun Hao T
- Flag as inappropriate Answer (How long does it take to fully charge a MackBook Pro with Retina Display?)
what is the use for the 2 little wings you can flip open on charger ?
on mains charger there are 2 little wings that flip open is there a use for them ?
- Asked by Hannah C
- Flag as inappropriate (what is the use for the 2 little wings you can flip open on charger ?)
It's to coil the cable around whilst storing/travelling, along with the little clp on. The cable to secure the coil
- Answered by Matt P
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On the prong side, the side that houses the wall. It will say the watts in a square followed by MagSafe 2 Power Adapter, eother 45W, 60W or 85W in the box. It's in the biggest font and on the top of all the writing and info is on the charger. Also if you get a charger that is rated higher than what you need there is if you use that charger. For example I have a 13in rMBP and it's original charger is 60W MagSafe 2 adapter. But I use my girlfriend's charger which is an 85W MagSafe 2 adapter for her 15in rMBP. The charger charges my rMBP just fine. But if she were to use mine, her computer would take long than usual.
- Answered by Gustavo C from Madera
- Flag as inappropriate Answer (how do you tell the difference between a 60-watt charger and an 85-watt charger?)
What is the difference between the two power adapters?
45W and 85w cost is same description the same....what's the difference?!!!!
- Asked by Deborah E from Canby
- Flag as inappropriate (What is the difference between the two power adapters?)
Size and compatibility.The 85w is larger/heavier than the 45w. The 85w will adapt to be used with a lower power computer (ie. the MacBook Air), but it was intended for use with the MacBook Pro with Retina Display.
- Answered by Charles L N from Thousand Oaks
- Flag as inappropriate Answer (What is the difference between the two power adapters?)
The fact is that the old 85W MagSafe adapter and the new 85W MagSafe 2 adapter differ in their electrical specifications, not just the connector:
Old 85W MagSafe adapter:
Input: 100-240V, 1.5A, 50-60 Hz.
Output: 16.5 - 18.5V, 4.6A
New 85W MagSafe 2 adapter:
Input:100-240V, 1.5A, 50-60 Hz.
Output: 20V, 4.25A
We all know now that there is an adapter available to make the connector of the old MagSafe adapter fit the new rMBP, but the real question is what effect the voltage difference will have. Will it work? WIll it charge more slowly? Does the rMBP have internal circuitry that fully compensates? It will take someone with real technical knowledge of the new rMBP to answer this one.
- Answered by Carl K from St. Catharines
- Flag as inappropriate Answer (Will previous generation MBP MagSafe power adapters work with new MBP Retina Display?)
Old Mac will work with MagSafe 2 ???
My old macBook Pro 15 " Power Supply does not charge the battery but the LED is green and computer works when plugged in electric outlet.
Tested 2 different batteries and the result is the same!
Please advise which Adapter I do have to get
- Asked by Oswaldo N from Colleyville
- Flag as inappropriate (Old Mac will work with MagSafe 2 ???)
No, this is only for the newer MBP. The connector is different. You need to get the original MagSafe charger (Apple 85W MagSafe Power Adapter (for 15- and 17-inch MacBook Pro)).
- Answered by Dj P from Duvall
- Flag as inappropriate Answer (Old Mac will work with MagSafe 2 ???)
Hello Efrain, sure it does! Once your charger turns green it indicates it's fully charged and therefore stops charging the battery but uses the extra current for the computer itself.
- Answered by Omar G from Los Angeles
- Flag as inappropriate Answer (when the battery is fully charged, does the ac adapter recognize it and stop charging?)
You can use it but I do not recommend it because it really takes a long time for a full recharge.
- Answered by Aung Z from Perth
- Flag as inappropriate Answer (Can I use a 45w charger efficiently with a macbook pro (retina display)?)
Is this compatible with my 2014 13" Macbook Pro w/ Retina Display?
- Asked by Jonas C from Sunapee
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A bit late for this person, but for future reference: Always use the power supply WITHOUT a voltage converter. The Apple power supply reads the correct voltage and adapts to the country you are in. You just have to have the correct plug for the local elctric sockets.
The power supply is universal but the plug on your cord matches the sockets in the country where you purchased the computer. So a U.S. computer has a different plug than those for England, Germany, or Italy, etc.
1) The large, thick power cord for your computer is not permanently mounted in the power supply. Remove the cord by placing the power supply on a flat surface and pushing the cord firmly, sideways out of the body of the power supply. Do this squarely, noting how it attaches (genius really). In addition to the power cord, your computer came with a small white plug from the country where you bought the computer. It slides directly into the power supply in place of the power cord. This allows you to plug the power supply directly into your home country's electric socket without the long, thick cord.
This white plug can be replaced with different proprietary Apple plugs for different countries. If you plan on traveling to a lot of different places, buy the World travel Pack that contains multiple plugs.
Or, when you get to the country you are visiting, go to the Apple store there and buy either the correct plug for that country or a new power cord with the correct plug (or both). Install one in your power supply.
2) Buy a the correct plug adapter for your new country. Plug your home country's power cord or small white plug directly into this adapter. The local adapter plugs directly into the electric socket.
3) You can buy a new power supply in the country you are visiting. It will have the correct cord and plugs for that country. If your power supply goes bad abroad and you buy a new one, save your home country's cord and plug to use when you get home.
- Answered by Robert C from Minneapolis
- Flag as inappropriate Answer (Will MagSafe 2 from USA work in Europe with 220 v and plug adapter only? Or does it need a voltage converter?)
Does the 85W MagSafe2 Power adapter work on my macbook pro with 13 inch retina display without any damage?
I have already bought the 85W MagSafe 2 Power Adapter but lately be told the suitable power adapter should be 60W. If I still use the 85W, will the power adapter do some damage to my laptop?
- Asked by Yaxue L from Gainesville
- Flag as inappropriate (Does the 85W MagSafe2 Power adapter work on my macbook pro with 13 inch retina display without any damage?)
Yes. The 85W rating is the maximum amount of power this adaptor is designed to provide. by choosing this adaptor you can power any device that Apple currently sells which uses the magsafe 2 connector.
If you have a device that draws less power such as a macbook air that only draws 45W or macbook pro 13 that uses 60W then the adaptor just doesn't have to provide as much power. No downside. If anything, an 85W adaptor powering a lower power mac might even run cooler than the smaller 60W adaptor.
- Answered by Matt M from Tucson
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T or L shaped 85 MagSafe power adapter with my 2008 15-inch MacBook pro
- Asked by Robin B from Hollywood
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Can I buy a British standard version if I am living in the US?
I may be moving from the US to London within the next year. How can I buy a power cord before I go?
- Asked by Berry B from Orem
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I have an old 13 inch normal mac book will this adapter be safe for it?
- Asked by Amanda B from Amherst
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You will want to purchase a 60W adapter for use with your MacBook. This charger has a MagSafe 2 connection, which will not connect to your MacBook.
- Answered by David V from Fairport
- Flag as inappropriate Answer (I have an old 13 inch normal mac book will this adapter be safe for it?)
Is there a chance to switch the wall adapter from Thai into something else?
I'm thinking about buying a macbook pro in thai and I was wondering if I could switch the wall socket/adapter to fit Israel wall sockets without any additional
- Asked by Semion L from Arad
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You will need to buy the World Travel pack which includes the adapters for different countries.
- Answered by Robert G from Ottawa
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Does this item include the AC power cord?
- Asked by Ryan I from West Chester
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- Answered by Ben N from Oberon
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Yes. Looking at mine the print says 100-240V 50-60Hz.
- Answered by Michael Z from Fresh Meadows
- Flag as inappropriate Answer (Does the adapter that comes with the American macbook pros work with 220/230 volt and 60Hz currents?)