Sony Lithium Photo batteries - size CR2 - Blister of 1. Ideal for high drain photo equipment, Sony Lithium Photo batteries offer you the best of Sony battery technology. Longer running time, especially in high drain equipment such as digital cameras and camera flashes. Providing the high voltage required by cameras, Sony Lithium batteries are light-weight and can also be used in a wide range of temperatures, even in extremely hot and cold temperatures!