Asked my mom to get me the Apple 60W MagSafe 2 Power Adapter from iStudio in Changi Airport because she is travelling to Hong Kong with my dad. The retail price is S$108 but if you get it from the Airport, you don’t have to pay tax for it. So it is cheaper by about 7%, so it cost about S$100.93.
The Apple 60W MagSafe 2 Power Adapter is meant for MacBook Pro Retina 13″. As long as your MacBook uses 60W or less, you can use this particular adapter. Case in point, you can use this power adapter with MacBook Air 11″ or MacBook Air 13″.
It is good to have a spare power adapter. I have one in my office, one at home and one in my bag. In this way, I know I will not misplace my power adapter.