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. Features - Stable discharge characteristics - High-energy density - Volume 100% leakage resistance - Zero mercury