Lithium Ion Batteries can be taken out of China?

I will be leaving China in two weeks and I bought myself a few spare parts for my hobbies of remote controlled planes. The thing is one of the items is a pair of Lithium Ion Batteries (One for my remote control and the other one for the plane's engine :-) )...Can I carry my batteries in my Hand luggage without problems? Or there are specific procedures that I will have to undergo to carry my two precious batteries...? Thanks.