The Duracell CR2430 3V Lithium Coin Cell Battery is a reliable and long lasting power source. Ideal for a wide range of small electronic devices including car key fobs, remote controls, medical devices, fitness trackers, watches and calculators. This high performance lithium battery offers consistent power output for demanding applications. Designed for safety and durability, it provides dependable power for essential electronics. Each battery is engineered to deliver reliable and powerful performance. This pack contains two CR2430 batteries.