[2] They are available in small sizes as button cells, where the amount of silver used is minimal and not a prohibitively expensive contributor to the overall product cost.

[4] This consisted of a circle of cups of a liquid saline electrolyte, containing alternating zinc and silver strips connected by wire.

[5] Large silver oxide batteries were used on early ICBM's and satellites because of their high energy-to-weight ratio.

[9] Until 2004, all silver oxide batteries contained up to 0.2% mercury, incorporated into the zinc anode to inhibit corrosion from the alkaline environment.

[13] Other safety concerns with silver oxide cells stem from their small size, which often leads to accidental swallowing and poisoning, especially by young children.