EMPIRE 2200mA Replacement NiCad Battery for Streamlight SL20 Flashlights Scientific #FLB-NCD-4 FLB-NCD-4 (5 1/2 D Stick Ni-CD 6V 2500mAh) Battery Replacement For Streamlight, GE/Ericsson, Gates, Maglite Battery Made with high quality Japanese cells. 100% compatible with your OEM battery. 1 year warranty