ram04769 - 12/15/2017 6:21 PM
Hi Matt. I brought all of my equipment with me as checked luggage the last time I went down to Florida with no troubles. My knife was no problem and the main recommendation for batteries is that they are not loose. They’re worried about the batteries moving around and touching creating shorts and overheating, etc. I left them in my flashlights, camera, etc and any spares I had were in hard plastic battery cases. I can’t say anything about bringing the dive computer and regs as carryon, they may simply ask their purpose and let you be on your way. Other than that, my dive camera was part of my carryon as well and no trouble.