Energizer® lithium button batteries are among the most often chosen by consumers because they’re a proven source of dependable power. Slim in profile, these Energizer® CR1620 button battery are typically used in applications such as heart rate monitors, keyless entry fobs, calculators, glucose monitoring devices as well as small electronic games and toys.
Due to their latest lithium chemistry, you can now have spares and not worry about them losing energy over time. They are good for up to 8 years in storage without any loss of power and are extremely temperature tolerant, performing reliably at -30C to 60C.
Energizer® CR1620 3V button batteries weigh just 1.3 grams with a diameter of 16 mm and a thickness of 2 mm.