Varta CR1/2AA. Battery size(s): CR14250, Battery technology: Lithium, Battery voltage: 3 V. Height: 25.1 mm, Diameter: 1.48 cm, Weight: 8.7 g. Package width: 80 mm, Package depth: 18 mm, Package height: 120 mm. Shipping (inner) case width: 9.8 cm, Shipping (inner) case length: 12.7 cm, Shipping (inner) case height: 8.35 cm