An interior door does not have to withstand extreme weather changes. Interior and exterior doors are not the same product sold under different labels. The construction of each is different, with exterior doors given special treatment to stand up to the elements and frequent use.
The charging of lead-acid batteries can be hazardous. However, many workers may not see it that way since it is such a common activity in many workplaces. The two primary risks are from hydrogen gas formed when the battery is being charged and the sulfuric acid in the battery fluid.
:) In the case of a battery it is the two dissimilar metals (lead,copper and even the steel bolts) are caused to corrode... either by their mere presence, or by some 3rd party chemical.In this case, it is battery acid and the act of charging a battery. That is why most corrosion is found on the Negative battery post. The constant overcharging of the battery increase the corrosion.