Product basic info Primary colours: Grey Primary detailed colours: Metallic silver Diameter unit: 5.8 mm Depth unit: 2.7 mm Weight unit: 0.26 g Physical properties Number of pieces: 1 Technical data Battery capacity: 16 mAh Battery system: Ag Power supply Battery voltage rating: 1.55 V Battery composition: Silver-Oxide Battery IEC size: SR64 (LR527, SR527 ,LR64, 319) (EN)