Originally Posted by
essxjay
A MagSafe Power Adapter is a MagSafe Power Adapter.
I have two Macbooks (2008, 2011) and one MacbookPro (2006),
Later MBPs (starting I'm not sure when) use a magsafe adapter that has a slightly larger head at the low voltage end. You can get an adapter from the smaller to the larger for about $10. I have both and my mid-2015 is plugged in through the little adapter to the smaller adapter right now.
The very newest ones charge through a USB-C, which is completely different. there may or may not be an adapter to either of the magsafes.