The following links claim that inventor Arturo Solis Herrera has created an "everlasting battery".
The article claims that:
Bat gen is the name of this ever-lasting battery. It consists of a biochemical process triggered by mixing water and melanin, which results in a substance capable of separating oxygen from hydrogen (the components of a water molecule), therefore liberating energy.
The process continues as the same molecule brings together both elements turning them into water again; as a result one more energy load is triggered.
According to Solis’ research, once this process is reached, it can continue for 100 years! Moreover, there are several ways of artificially producing the melanin found in human nails, hair and retina; two of them, which he already patented, are based on vegetables and oil.
Although they do not claim that the battery is perpetual, they seem to imply that mixing water and melanin can give an (oscillating?) reaction that can last for 100 years, providing cheap power.
Does this have any chemical basis? What matter is consumed?
Would that work without the user needing to add anything to the battery or is the article just describing the process in a misleading way?