The Duracell silver oxide battery is suitable for powering small portable electronic devices, such as wristwatches and car keys. Silver oxide batteries maintain an almost constant nominal voltage during discharge until fully depleted. The silver content is very small, resulting in low battery cost. The substances contained in a small battery are capable of polluting 1 cubic meter of soil or 400 cubic meters of water. The battery may be depleted, but it still has important components. For this reason, we must find special collection bins and recycle it, so the "life cycle" of the battery continues. In this way, the basic elements are recycled and new batteries or other products are produced.