BPW4-4C 4.8V NiCd C W4 C Wide : 4.8V 2500mAhUsage and CompositionEmergency Lighting, Two Way Radios, Memory Backup Systems, Professional lighting, Emergency Medical Equipment Security ServicesNickel Cadmium (NiCd)Battery SpecificationsVoltage 4.8VNominal Capacity 2500mAhPhysical DimensionsSize C X 4 WideWidth 51mmHeight 99mmWeight 312g