I have a MacBook Pro computer and I will be traveling abroad to Hong Kong for studies. The electric sockets and voltage are different than here in the US so I would have to use a converter but it is a big hassle carrying around a power converter everywhere I go… I'm hoping to find another solution. If I purchase a HK MacBook Pro power cord will it work with my computer which I purchased in the US?
MacBook – use a foreign power cord to power the MacBook
internationalizationmacbook propower
Related Solutions
According to Apple knowledge base entry HT2346 the 85W power adapter is the right one. However, there seem to be issue with "T" style (the old) vs. "L" style (the new): see this thread. It seems that for some people, a workaround does the trick:
Turn off your computer, flip over the laptop and remove the battery, hold down the circlular button on the battery for 10 seconds, the green light should go out. Re-install the battery and turn your computer on. Your new charger should work fine.
If that doesn't work, you need to call Apple support to arrange for your power adapter to be replaced with a "T" style adapter:
Apple is aware of the issue with the pins being at a different depth in the new chargers with the "L" shaped connection. After having two new ones not work, I contacted tech support. They sent a new version of the old charger with the square mag safe connector. It works fine.
Edit: Apparently the MacBook SMC Firmware Update 1.4 should fix the "L" style power adapter issue on older MacBooks.
The extension cord is the part on the right. One came with your power adapter, and it goes between the adapter and the wall. A new one would work fine with your current power adapter but won't do anything by itself.
Best Answer
Yes, the MagSafe power adapters support dual voltage (100-240V).
According to the specs on Amazon for the 85W version:
So long as the local input provides power in that range, you'll be able to get a local MagSafe compatible cord and your US MBP will be fine.