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
  • 12-Jun-2012
Apple 85W MagSafe 2 Power Adapter (for MacBook Pro with Retina display)

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

Product No Longer Available

3 Answers from the Community

  • Best Answer:

    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
    • 02-Jul-2012
  • The 45W is meant for the MacBook Air and the 85W is for the MacBook Pro with Retina Display. The built-in 95-watt-hour battery in the Pro and the 50 in the Air each have different chargers.

    • Answered by Dean S from Encino
    • 18-Jun-2012
  • 45W is for the New Macbook Air, and the 85W is for the Macbook Pro (Retina)

    • Answered by Oren S from Denver
    • 14-Jun-2012