The Tianqiu C1616 is a 3V lithium cell battery designed for small electronic devices. This coin-style battery features reliable lithium cell technology in a compact CR1616 form factor, making it ideal for watches, calculators, car key fobs, and other small electronics requiring long-lasting power. Key features: • 3V lithium cell battery • CR1616 size format • Coin cell design • Long shelf life • Reliable performance • Single battery per pack The battery features a silver metallic finish with clear labeling showing the battery type and voltage. The CR1616 designation indicates its specific size dimensions - 16mm diameter and 1.6mm height. For optimal performance and safety, store in a cool, dry place away from direct sunlight and heat sources. Follow proper disposal guidelines for lithium batteries when depleted.