Duracell High Power Lithium 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. Guaranteed against defects in material and workmanship. Should any device be damaged due to a battery defect, Duracell will repair or replace it at their option.