Duracell 1620 Lithium Coin Cell Battery features DuraLock Power Preserve Technology, ensuring long-lasting power for a variety of devices. This reliable lithium coin cell battery is commonly used in medical devices, watches, toys, fitness trackers, security devices, and other electronic gadgets. It is equivalent to DL1620 and CR1620 batteries, making it a versatile choice for your power needs. With Duracell’s performance, you can count on consistent energy to keep your devices running smoothly. Model Number: 43687