Duracell CR1620, Single-use battery, CR1620, Lithium, 3 V, 1 pc(s), 75 mAh Duracell CR1620. Battery type: Single-use battery, Battery size(s): CR1620, Battery technology: Lithium. Width: 2 mm, Depth: 16 mm, Height: 16 mm. Battery form factor: Button/coin