CR927 button cell Nominal Voltage: 3V Average Weight: 3G Nominal Capacity: 210mAh Test Condition: 15KΩ Load resistance, end-point voltage 2.0Volt Diameter: 20mm Height: 3.2mm Shelf Life: 4 Years Battery Applicable Products: Toy, LED light, Clock, Calculator, PDA, Memory card, etc. Packing: 5PCS/blister card, 100PCS/inner box, 5000PCS/carton, G. W.: 21.9 KGS, Carton size: 39*29*30 cm