The GP Lithium Button Cell Battery CR2477 is powerful and designed to provide long-lasting, reliable and superior power for your high-tech devices, including smart home devices, motion sensors, smart remotes, smartwatches, car keys and garage door openers. With remarkable power retention properties and a shelf life of up to 10 years, when stored properly in a cool and dry place, you'll never be left with dead batteries. Designed to function in extreme conditions, the GP CR2477 works reliably from -20 °C to +60 °C. Safety first. This battery is not only designed to protect your devices with a leak-proof construction, but also your children with thoughtful packaging.