Questions & Answers for Apple 85W MagSafe 2 Power Adapter (for MacBook Pro with Retina display)

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
• 12 Aug, 2012
• Flag as inappropriate Answer (what is the use for the 2 little wings you can flip open on charger ?)

The 85w will suffer less load stress and not hurt the 13" in any way and possibly charge faster.They are interchangeable, my daughter and I have shared her MacBook charger and my pro charger on both laptops with no problems.

• Answered by Chris B from Kalgoorlieboulder
• 24 Mar, 2018
• Flag as inappropriate Answer (WHich is the best for an extra charger for Mac pro retina display 13 inches: the new 80w or the old 60w with an adapter?)

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
• 11 Oct, 2014
• Flag as inappropriate Answer (when the battery is fully charged, does the ac adapter recognize it and stop charging?)

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.

Three solutions:

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
• 23 Aug, 2013
• 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?)

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
• 7 Jun, 2015
• Flag as inappropriate Answer (Can I use a 45w charger efficiently with a macbook pro (retina display)?)

Support advised me that it comes with a one year warranty.

• Answered by Michael S from Oviedo
• 9 Aug, 2017
• Flag as inappropriate Answer (Does that charger come with a warranty?)

So far, every MagSafe Power Adapter has been able to automatically handle 100V-240V. I would assume that this one is the same. That said, you should always check the adapter's input voltage information (which is usually printed on the power adapter itself or on the accompanying documentation) before plugging it in to any power source.

• Answered by Jarrett A from Vancouver
• 13 Jun, 2012
• Flag as inappropriate Answer (Is it possible to pre-order a 220 Volt Magsafe 2 in one of your Apple Stores together with the new Macbook Pro?)

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
• 24 Jan, 2015
• Flag as inappropriate Answer (Will the 85w magsafe 2 charger works better than 45w magsafe 2 for macbook air?)