Panasonic CR2 3V Photo Lithium Battery Panasonic Photo Power lithium batteries combine very light weight material with lithium technology, to create a power source suitable for high energy cameras. In addition, they have the following characteristics: Class leading capacity * for increased product performance ** Low internal resistance to provide rapid flash recovery time and quick shooting High energy density: light weight battery supplying exceptional energy Reliable even in a wide range of operating temperatures (-20 C to +65 C) * Internal Matsushita Testing, autumn 2003. ** Versus previous generation of Panasonic Photo Power lithium batteries (CR-123AEP, 2CR-5MEP, CR-P2PEP). Also known as - CR2, 1CR2, DLCR2