This is a great value pack of 5, high quality button cell lithium batteries. As well as being compatible with many calculators, wireless doorbells and other small devices these batteries fit the Electro-Fashion, Sewable Coin Cell Holder and the Coin Cell Power Board Kit. They are 3V with a capacity of 200mAh. Features: * 3V 2032 lithium battery. * 200mAh capacity. Contents: * 5 x CR2032 3V Coin Cell Batteries. Dimensions: * Height: 3.2mm. * Diameter: 20mm. Caution: Coin cells should be kept out of the reach of small children as they are very dangerous if swallowed, when immediate medical intervention is required.