Lithium CR1616 3V Coin Battery: - Type: Lithium coin cell - Model: CR1616 - Voltage: 3V - Compact and coin-shaped design - Commonly used in small electronic devices - Ideal for watches, calculators, key fobs, and more - Long-lasting and reliable power - Flat, disc-like form factor - Lightweight and easy to install - Suitable for low-drain devices - Widely available and cost-effective.