15It Absorbs Sunlight At An Accelerated Rate
Superman, like all Kryptonians, receives his power from a yellow sun, such as the one in our solar system. His body acts similar to a battery, absorbing yellow sunlight to power himself to the god-like levels we know him for.
The black suit is able to
harness this Kryptonian ability and take it up several notches, absorbing and converting yellow sunlight at a rate much faster than what naturally occurs for Superman.
Combined with his natural traits, Superman in the black suit is a super battery with a majorly upgraded storage tank. One might think this means that Superman will come back stronger than ever, but they would be mistaken. Although the black suit can absorb more sunlight, unfortunately, its purpose is not to help him kick more butt...