Flashlight battery for Streamlight Ultrastinger, SL20X-LED (P/N 77175, 20175) Titan Brand Replacement Streamlight Battery Output Voltage: 6V Amperage: 1600mAh Chemistry: NiCD Designed to meet or exceed OEM specifications Works With: 77175, 9926J, SL20XP-LED SUPER STINGER, ULTRA STINGER 1 Year Warranty