Panasonic CR1025/H9BN Lithium Manganese Dioxide Batteries are designed to provide long-lasting reliable power in various devices. These batteries feature a nominal capacity of 30mAh, nominal voltage of 3V, good pulse capability, stable discharge voltage, and -30ºC to 60ºC operating temperature range. The CR1025 batteries are ideal for memory backup, laser pens, calculators, car keys, fitness appliances, and medical devices.