Duracell believes there is no limit to the potential of portable power and it always strives to find innovative and efficient ways to power your life. Duracell Specialty 2025 Coin Button lithium batteries are made with high-purity lithium for reliable, long-lasting power for your specialty devices. They have up to 10 years of in-storage guarantee with DuralockPower Preserve technology so you can be confident these lithium coin button batteries will be ready whenyou need them. To help ensure the safety of your children, they have been designed with child-resistantpackaging. They are designed for use in electronics (bike computers, postal scale, desktop clock radio,electronic diary), security (bank card reader), medical devices (glucometers, heart rate monitor), fitnessdevices (pedometer) and lights.