Duracell Coppertop lithium batteries are ideal for watches, calculators, ebooks, glucose monitors, toys, games, key fobs, TV remotes, medical devices and other small electronics;This battery has a compact design that's ideal for many small and flat devices; Easily slides into place when it's being installed;Duracell Coppertop batteries deliver long-lasting, dependable power for your coin-battery-operated item;With Duracell's Duralock Technology this battery lasts up to 10 years in storage. The long operating life allows your device to run for an extended period of time before replacing;Don't forget to ask about our lifetime battery replacement services for you watch or keyfob;Recycle with us! Bring your old dead batteries to your local Batteries Plus location for proper disposal. Fees may apply.