Duracell Specialty 2430 Lithium button cell batteries are made from high purity lithium for reliable and long-term use of your special devices. They have a 10-year warranty on storage with the Duralock Power Preserve technology. This way you can be sure that these lithium button cell batteries are ready for use when you need them. They are intended for use in keychains, small remote controls, scales, portable devices, sensors, and sports devices (heart rate monitors, bicycle accessories). Specifications CR2430 Volt: 3.0 Size (mm): 24.5 X 3 mAh: 285 Best Uses Medical devices Watches Toys Fitness devices Security devices Electronics and moreEquivalent toDL2430CR2430