The Sony CR1220 is a compact and reliable 3V lithium coin cell designed to deliver steady power for miniature electronic devices. With a slim 2.0mm profile and 12mm diameter, it’s perfect for space-limited applications like car keys, small medical equipment, digital watches, remote controls, and fitness gadgets.
Utilizing lithium manganese dioxide (Li-MnO₂) chemistry, the CR1220 ensures high energy density, dependable voltage output, and minimal self-discharge over time. Manufactured with Sony’s precision engineering, this battery combines performance, safety, and durability in one small package.
