CR2025 3V Coin Cell Lithium Batteries by Energizer¨. 2 per Pack. The Energizer CR2025 3V Lithium Coin Cell Battery is a compact and reliable power source used in a variety of everyday and professional devices. Delivering 3 Volts of power and boasting an impressive 163 mAh capacity, potent coin cell provides all the energy necessary to run keyless remotes, cameras, calculators and even medical devices. The battery uses a potent Lithium chemistry that not only provides impressive output, but gives the cell a lengthy shelf life of 10 years, allowing them to be stored around the house or office for when you need them most.