Hey forum, Future Macbook owner here, have just been waiting for the dust to settle before placing my order... Anyway I've been spending time in my local Apple Store really getting to know the new MacBooks to make sure it's the right fit for what I want. So far so good. But I just discovered something weird: I was testing one out for a good 30 mins with the power disconnected, just to get a feel for how long it takes for the battery to start running down. When I reconnected the power cable, after a while I checked back and saw that it wasn't charging at all. The panel in the menu bar said it was on battery and not charging... So I tried reversing the cable and lo and behold, it started charging. I tested the same thing out on a couple of other display MacBooks and the same thing happened. I asked the staff (more than one of them) and they all seemed to know nothing at all about USB-C and just said, yeah I guess it must only work plugged in one way. So it's obviously no biggie, but... I thought the new USB-C standard was meant to be completely reversible? Or is it only reversible as far as data connections are concerned but not for the power cable? Can anyone who has a new MacBook confirm/deny this? Cheers!