Questions & Answers for Apple 85W MagSafe 2 Power Adapter (for MacBook Pro with Retina display)
43 Questions + 79 Answers
43 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?)
can i use power adpter megasafe 2 using adapter to work in macbook pro 15 2012.?
- Asked by Rogerio A from Sao Paulo
- Flag as inappropriate (can i use power adpter megasafe 2 using adapter to work in macbook pro 15 2012.?)
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
- Flag as inappropriate Answer (what is the use for the 2 little wings you can flip open on charger ?)
It should work the same. The charger doesn't "force" current into the computer, the computer draws what it needs from the charger. The MBA will only draw 45W max so the 85w charger will easily provide the needed current. The problem happens when you try and use the 45w charger with the 85w computer. It will try to draw more current than the charger will deliver and that can cause problems.
- Answered by Mitchell P from Carson City
- Flag as inappropriate Answer (Will the 85w magsafe 2 charger works better than 45w magsafe 2 for macbook air?)
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?)
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?)
Which cable for charging do I need for Mac 17 inches
Power cable for my old MacBook Pro 17 inches
- Asked by James K from Lander
- Flag as inappropriate (Which cable for charging do I need for Mac 17 inches)
Because Apple has ceased manufacturing of the 17-inch MacBooks, existing ones still use the MagSafe 1 interface. A MagSafe 2 power adapter will not work with any of the 17-inch MacBooks. In conclusion, you will need a MagSafe 1 power adapter with an 85-watt rating.
- Answered by Andy V from Braintree
- Flag as inappropriate Answer (Which cable for charging do I need for Mac 17 inches)
No a 85W MagSafe 2 power adaptor is not compatible with a 15" Macbook Pro Late 2008, only a 85W MagSafe 1 Power adaptor. If you're looking for a 85W MagSafe power adaptor go to the apple store or apple.com. MagSafe 1 and 2 power adaptors are 2 different sizes.
Source: Mac Tracker App from the app store.
- Answered by Tyson H
- Flag as inappropriate Answer (Hi, I'd like to know if this is compatible with a 15'' Macbook Pro Late 2008? Thank you)
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?)
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 ???)
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
- Flag as inappropriate (Can I buy a British standard version if I am living in the US?)
Is this the only power adapter available for MacBook Pro Retina?
- Asked by Ben M from West Chester
- Flag as inappropriate (Is this the only power adapter available for MacBook Pro Retina?)
Yes, but we (MBP retina owners) are willing for a DC adapter, or at least an open connector for DIY.
Can you hear us Tim?
- Answered by Simone L from Varese
- Flag as inappropriate Answer (Is this the only power adapter available for MacBook Pro Retina?)
does my apple 85w magsafe 2 work in japan
- Asked by Joyce P from Osprey
- Flag as inappropriate (does my apple 85w magsafe 2 work in japan)
No you cannot The MacBook Pro will try to draw more power than the 45 watt charger can deliver and may damage one or both items.
- Answered by Devon H from Chelmsford
- Flag as inappropriate Answer (Can I use a 45w charger efficiently with a macbook pro (retina display)?)
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?)
Is it o.k. to swap a.c plugs (duckheads), from one adapter to another?
I have a 85w megasafe2 adapter and a magasafe 60w adapter, and I am not sure if the a.c. plug I am using is from my 60w, or my 85w adapter, and I am using the plug on my 85w adapter.
- Asked by Michael A from Novato
- Flag as inappropriate (Is it o.k. to swap a.c plugs (duckheads), from one adapter to another?)
Does this item include the AC power cord?
- Asked by Ryan I from West Chester
- Flag as inappropriate (Does this item include the AC power cord?)
- Answered by Ben N from Oberon
- Flag as inappropriate Answer (Does this item include the AC power cord?)