Unveil the convenience of a long-lasting power source with the Duracell CR1620 3V Lithium Coin Button Battery, ideal for a plethora of devices including car keys, remote controls, and watches. These batteries are designed to cater to high-drain applications, ensuring reliability and efficiency. Each pack contains four units, boasting a chemical composition of lithium-based and a voltage of 3V. The coin/button cell size measures between 18.6-20.5mm, making them a compact and suitable choice for various electronics that require a dependable energy supply. Use By Date 2034