Our longest lasting lithium battery: This Energizer Cr2016 Ultimate Lithium Coin 3Volt Battery delivers big time on longlasting, dependable power for your coinbatteryoperated items. From heart rate or glucose monitors to remotes, keyless entry systems, key fobs, watches, toys, and games—and even more specialized devices—our coin batteries are compatible with the devices that fit your life, so you can keep going. These reliable and durable Energizer Coin Lithium Batteries are able to withstand a wide range of temperatures (from 30o to 60o C) and can hold power in storage for up to 12 years, giving you coin battery power you can depend on. Responsibly designed with zero mercury and childresistant safety packaging to keep your little one safe, it’s easy to see why Energizer Lithium Coin Batteries are the right choice for your speciality devices