SR64 (V319)silver oxide-zinc button cell, 1.55 VTechnical specifications Battery IEC-Name SR64 Technology silver Oxide-Zinc Battery Voltage 1.55 V max. capacity 16 mAh rechargeable no General Consumption Unit 10 pcs. in box Model designation V319 Manufacturer designation 280-60, 319, 615, SB-AE/DE, SR527, SR64, V319 Height 2.66 mm Diameter 5.8 mm Weight 0.25 g