The silver oxide batteries are primary (non-rechargeable) cells where silver oxide (Ag₂O) serves as the positive electrode, while the negative electrode is typically zinc. These batteries provide a stable output voltage and operate with a flat discharge characteristic, making them an excellent power source for sensitive instruments.
Silver oxide cells are mainly used in applications requiring small size, stable voltage, and long life, such as watches, memory backup units (RTC), sensors, or other electronic devices.
Although silver oxide batteries are generally more expensive than alkaline versions, their high energy-to-weight ratio and ability to handle higher current loads make them highly efficient.
This category includes various sizes and capacities, suitable for replacing standard button cells — for example, SR (silver oxide) series coin cells. When selecting the appropriate type, it is important to consider the device’s energy requirements, size, and operating conditions.