Energizer 637762 CR2032 3V Lithium Coin Cells Made with an additional plastic layer to deter shrinkage and improve tamper resistance and child safety Best Value Coin Cell, New Pack Size from Energizer Energizer Batteries offer a comprehensive range of lithium coin cell batteries for a broad range of applications that required long service life over a wide range of operating temperatures. These batteries offer superior performance in terms of reliability and safety, and have an excellent storage life at room temperature. Size of battery - 20mm x 3.2mm Also known as - CR2032, BR2032, SB-T15