10 Replies Latest reply: Jan 12, 2015 5:37 AM by Holzfreiweiss
lukewd Level 1 (0 points)

hello all. i am considering upgrading from a Macbook Air to the new MacBook Pro with Retina Display.


However, i would first like to know what happens if you plug the new MacBook Pro with Retina Display into the older Air's 45w MagSafe 1 adaptor?


The reason for my question is that I have bought several spare 45w magsafe adaptors and have them in places like my home study, and office desk. this saves me having to pack one up whenever i move location. i am 100% aware that the older ones would need a converter to make them fit.


but the real question is, will the older 45w magsafe adaptor harm the new MacBook Pro with Retina Display? if not, will it power it at all?


i dont mind if it doesn't actually charge the laptop but rather just powers it. could someone please test this and let me know. thanks.