Panasonic CR123 Photo-lithium Battery - 1 in pack The Panasonic 1400mAh photo-lithium battery has a size of CR123A and a nominal voltage of 3V. This battery has a lithium manganese dioxide chemical composition and was developed to power a wide range of applications that require optimum performance and reliability. Features and Benefits High current pulse discharge capability High energy density and safety High reliability and excellent quality Operating temperature ranges between 40°C and 70°C Superior shelf life with minimal discharge Applications Cameras Computers Memory back-up