I know that rules vary from airport to airport and nothing is certain with airport security, but I've been through 4 different airport security checkpoints in the last year and I haven't had any trouble. What I do is: put all batteries in clear ziploc bag and label bag "Electronic cigarette batteries" and I do the same with my cartos, except I label it "Electronic cigarette cartridges". I know that's not the correct terminology, but I don't feel like explaining cartomizers to people, especially security. I put small (under 3oz of course) bottles of juice in my toiletries bag with all the other small liquid containing bottles. Now, I do this to carry on my bag. I've never checked a bag with ecigs in them, I read somewhere about batteries being in checked luggage could create problems. I've also heard of security opening peoples bags to check out their ecigs, but haven't heard of any issues once they figured out what they were. Because of this I normally put the batts and cartos on top or in a front pocket of my bag so they can get to them easier and they won't have to dig through all of my stuff to find them. If you want you could always put the bag of batts and cartos in the bucket so they can be seen even easier.
But in my experience I haven't had any issues. Btw, I've only flown inside the US, I'm not sure about international flying.