Duracell Lithium Coin batteries provide reliable, long-lasting power for your specialty devices. They have up to a 10-year guarantee in storage so you can be confident these lithium coin batteries will be ready when you need them. To help ensure the safety of your children, they come in a child-resistant package. Duracell Lithium Coin batteries are great for devices like glucometers, calculators and car remotes. And you can be assured that they’re batteries you can trust because Duracell is the #1 trusted battery brand.Lithium Coin Battery: Duracell's 1620 3V coin batteries provide reliable, long lasting power for your medical devices, watches, toys, fitness devices, security devices, electronics and more.Long Lasting Power: Duracell coin batteries are engineered for long lasting performance.Child-Resistant Packaging: To help ensure the safety of your children, Duracell Lithium Coin batteries come in a child-resistant package.For 10 years in Storage: Duracell Lithium Coin batteries are for 10 years in storage.This Duracell 1620 lithium coin battery is equivalent to DL1620 and CR1620.