Maxell is the first company in Japan to successfully market button-type silver oxide batteries. Based on many years of experience and know-how in various fields, the SR battery is suitable for precision electronic devices such as quartz watches, where high-energy density per unit volume and a stable operating voltage are required. Various product lineups are available to meet the growing need for supplying power to various types of watches, ranging from large to compact, thin models. Zero-mercury, zero-lead added types are also available. Additional Details ------------------------------ Product description: Maxell is the first company in Japan to successfully market button-type silver oxide batteries and has many years of experience and know-how.?Also, in consideration of the environment, all products are designed to use zero mercury. Button-type silver oxide batteries are characterized by high energy per unit volume and stable operating voltage. As a result, they are used as a power source for applications such as quartz watches, and in recent years their use has expanded to medical devices and BLE devices.