MacBook Pro allowed to carry as cabin baggage?

Yes. The battery is within the limits of carry-on regulations, though it can be a good idea to confirm that for specific airlines and countries.

I have flown with several generations of Apple PowerBook and MacBook Pro all over the world for many years, no one ever turned it away.

Can a MacBook Pro be taken aboard on an AirPlane in a carry-on luggage? The answer is YES.

Axel F.