Energizer CR2 Lithium Batteries (2 Pack) 3V Photo Batteries 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.