Energizer 1225 3v Lithium 1 Battery sold per qty of 1.  These Energizer batteries are 100% mercury-free Engraved markings: BR1225, 3volts, Energizer, positive and negative poles Sealed cell battery construction Lithium-ion batteries Specifications: Chemistry: Lithium Voltage: 3V Dimensions: 12.5 mm, Height: 2.5 mm Brand: Energizer Qty: 1 Features: High Energy & Continuous Voltage Supply Long shelf Life (up to 10 years) Ideal Temperature Resistance Superior Storage capacity Ideal for the following applications: Watches Thermometers Calculators PDA Organizers Lights