Camelion CR2016 3V Lithium Coin Cell batteries provide stable energy for small electronic devices. They are suitable for car keys, calculators, laser pointers, hearing aids, and many other electronic gadgets   Specifications Model: CR2016 Voltage: 3V Height: .0125'' Diameter: 0.78'' Chemistry: Lithium Manufactured by Camelion Battery Cross Reference: DL2016, ECR2016, FA, SBT11, BR2016, 208-202, 208-204, 208-206, DL2016B, BR2016-1W, CR2016-1W, KCR2016, L10, LM2016, LF1/4V.