Product basic info Primary colours: Grey Primary detailed colours: Metallic silver Diameter unit: 4.8 mm Depth unit: 1.65 mm Weight unit: 0.13 g Physical properties Number of pieces: 1 Technical data Battery capacity: 8.3 mAh Battery system: Ag Power supply Battery voltage rating: 1.55 V Battery composition: Silver-Oxide Battery IEC size: SR416 (LR416, SR416SW, 337) (EN)