Originally Posted by essxjay

The design of the male end of the charger has been redesigned to resist fraying but that's doesn't affect its basic functionality. A MagSafe Power Adapter is a MagSafe Power Adapter.

I have two Macbooks (2008, 2011) and one MacbookPro (2006), and use both styles of chargers. They're completely interchangeable although the 85w MagSafe Power Adapter A1343 is [scarequotes] intended [/scare] for the MBP and the 60w version, the model number of which I cannot retrieve for you given the 11.5 lb. cat on my feet, is intended for the Macbook.