I bought rechargeable batteries for my Nikon but I don't want to rely on those to last the whole time I'm gone. The rechargeable ones WILL already be in my Nikon. But how do I pack extra AA batteries? I have the Kirkland brand ones that AREN'T individually packed.
I wouldn't worry about it. I always bring my camera with an extra battery or two in the camera case that stay in my backpack. No one has ever questioned it. I even have a spare AAA battery floating around the same backpack, again never questioned. I fly about 3 times a month domestically and I think it would have come up by now if it were an issue. I also brought extras for my Motorola Razor, when I still had it and same story.