Not sure if it's absolutely necessary but I would make sure you disconnect the flight battery so security can see that in the X-ray and be less likely to check further.
LiPo are treated differently. There was some discussion early in the thread regarding total capacity allowed and packing requirements.
The only thing I got caught out on was they took the tape and plug spanner I had in my tx case which I carried on.
ps. The plug spanner was for my wing bolts.