Duracell® Lithium Coin batteries provide reliable, long-lasting power for your specialty devices. They have up to a ten-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.. Battery Type: Lithium; Battery Size: 2016; For Use With: Everyday Electronic Devices; Voltage: 3 V.