Exell CRP2 Photo Lithium Battery Compatible With 2CR-P2 PC223 DL223A For Digital and Analogue Cameras, Selectronic and Ceratronic Fixtures, Flush Valves and Faucets Exell CRP2 Photo Lithium Battery are specifically designed to provide a reliable power source for all photo applications including exposure control, shutter release, photoflash and film rewind. EXELL's powerful Lithium blocks provide digital and analogue cameras with extra capacity. All cylindrical type manganese dioxide (CR series) Lithium batteries feature a spiral structure. By enlarging the surface areas of the positive and negative electrodes, they allow a current as high as several amperes to be drawn.