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.
Leaving the Power Wheel battery on charge of a period of 24 hours or longer can cause damage to the internal plating of the battery by generating an excessive amount of heat. If the Power Wheel battery charger is left on long enough, it could cause the battery pack to swell in size and eventually crack open.