This Duracell 1/3N Lithium Battery provides 3V DC power with a capacity of 190 mAh. Its button cell design and medium drain type make it suitable for a variety of devices, and its compact size of 0.45 in diameter and 0.409 in depth allows for easy portability. With a wide operating temperature range of -4 to 140 degrees F, this battery can be relied on for consistent performance.