Specification: Model: CR2032 Voltage（V）:3.0 Capacity(mAh):220 Type:Li-MnO2 battery Cut-off voltage(V): 2.0 Diameter(mm): 20.0 Height(mm):3.2 Weight(g):3.1 Features: High energy density Low self discharge rate Long storage life No voltage delay High current discharge Wide range of operation temperature Safe and environmental friendly