I still have my old adapter extension cord in good condition from my 2009 Macbook and I just got a 2019 16 in. Macbook Pro. I want to know if the old extension cord is safe to use with the new style of adapter for the Macbook Pro or if I have to buy a new one. I don't know what the wattage for either extension cord is.
MacBook, macOS 10.13
Yes. You can use it with no issue—it is just an extension cord.
I always recommend using the 3 prong extension.
The country version is specific otherwise they are interchangable:
Power Adapter Extension Cable - Apple
Yes. You can use it with no issue—it is just an extension cord.
I always recommend using the 3 prong extension.
The country version is specific otherwise they are interchangable:
Power Adapter Extension Cable - Apple
Assuming you mean the one that replaces the pronged dongle on the AC brick, yes it’s safe.
Adapter extension cord
