Well Mike, I agree that several things in the photo above fit right into your response. But, what is not totally clear when looking at the photo is that the battery and the components shown are actually inside an enclosed dedicated compartment. None of the components are installed directly **over **the battery either. So, the exposed battery terminals are not too worrisome. But your point about not knowing what a boat owner will replace sealed batteries with in the future is valid. So, perhaps the whole thing could be remedied with a warning label that simply states that a compartment is designed for use with sealed batteries only? Or perhaps, compartment and surrounding are not intended for use with unsealed battery technology....or something to that affect. As for the 12" dielectric shielding, that applies to metallic fuel lines in ABYC Standard E-10.