Never miss capturing a moment. Energizer® CR2 Photo Batteries deliver precise, long-lasting performance to your digital SLR camera and photo equipment. But it doesn’t stop at photos. These lithium batteries can also power up high-tech devices like your calculator, tablet PC, and more. With a storage life of up to 10 years, you can be sure they’ll stay fresh until you need them. They’re the perfect batteries for a picture-perfect life. Battery Type: Specialty; Battery Size: CR2; Voltage: 3 V; Material(s): Lithium Manganese Dioxide.