Apple 85W MagSafe 2 Power Adapter (for MacBook Pro with Retina display)
The 85W MagSafe 2 Power Adapter features a magnetic DC connector so if someone trips over it, the lead disconnects harmlessly and your MacBook Pro stays put safely. It also 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 lights up; an amber light lets you know that your notebook is charging, while a green light tells you that you have full charge. An AC lead is provided with the adapter for maximum lead length, while the AC wall adapter (also provided) gives you an even easier and more compact way to travel.
Designed to be the perfect travelling companion, the adapter has a clever design that 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 with MacBook Pro with Retina display.
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.
- MacBook Pro (Retina, 15-inch, Mid 2012 - 2015)
Answers from the community
how do you tell the difference between a 60-watt charger and an 85-watt charger?
- Asked by James W
- on 22-Mar-2016
Look on the adapter's side. If like mine your vision is not good enough - shoot it with your iPhone Look on the adapter's side. If like mine your vision is not good enough - shoot it with your iPhone and enlarge on a bigger screen.
Wattage is voltage multiples by amperage (max current).
If you see "Output: 20V = 4.25A max." it's 85 watt charger.
Hope it helps.
- Answered by Sergey Z from Brooklyn
- on 28-Oct-2019
Mfr. Part Number: MD506 is this 85W with 20V 4.25A and exact replacement for A1424
- Asked by Anonymous A from XXXXXXXX
- on 28-Sep-2012
I have one of these that I have purchased from England would I need a voltage adapter to use it in Singapore
- Asked by Jeniz W from Sidcup
- on 18-Oct-2012
what is the best way to extend the life of the adaptor? does keeping it plugged in electricity harm the adaptor??
- Asked by Maher M from SPRINGFIELD GARDENS
- on 10-Aug-2012
The best way to care for one doesn't involve unplugging it when not in use. The main thing is secure The best way to care for one doesn't involve unplugging it when not in use. The main thing is securely disconnecting it from your MacBook I.e. not just yanking it at an angle and putting strain on the cable.
- Answered by Anonymous A
- on 12-Aug-2012