Renata CR2477N 3v Lithium button Battery is the perfect product for anyone looking for a reliable battery that will last a long time. These batteries are perfect for any device that uses 3v lithium batteries, including calculators, watches, and other small electronics. These batteries have a long shelf life and can be stored for up to 10 years without the need for recharging. This makes them perfect for anyone who doesn't use their electronics often. Renata CR2477N 3v Lithium Coin Cell Renata CR2477N 3v Lithium Coin Cell is a type of battery that is used in calculators, watches, and other electronic devices. This battery is 3 volts and can provide up to 2 years of power before needing to be replaced. It is also available in AA and AAA size.