BPW4-4 4.8V NiCd D W4 D Wide : 4.8V 4000mAhUsage and Composition Emergency Lighting, Two Way Radios, Memory Backup Systems, Professional lighting, Emergency Medical Equipment Security Services Nickel Cadmium (NiCd) Battery Specifications Voltage 4.8V Nominal Capacity 4000mAh Physical Dimensions Size D X 4 Wide Width 66mm Height 120mm Weight 500g