Replacement Lithium Ion Battery Stick for the Streamlight Strion, Strion LED, Strion LED HP, Strion LED HL, Strion HPL, Strion DS, Strion DS HL, Strion DS HPL, ProTac HL USB, ProTac HL USB Headlamp and the Twin-Task USB Headlamp. It is a Lithium ion battery with an on-board safety control circuit to ensure that the battery is not damaged by being discharged too deeply. The original casing is blue and red in color and is 2 7/8 inches in length with a circumference of 2 1/2 inches, the color of the battery has now been change to red and black.

Compatible with:

• Streamlight ProTac HL USB
• Streamlight ProTac HL USB Headlamp
• Streamlight ProTac HPL USB
• Streamlight Strion
• Streamlight Strion DS
• Streamlight Strion HL
• Streamlight Strion DS HL
• Streamlight Strion HPL
• Streamlight Strion DS HPL
• Streamlight Strion Switchblade
• Streamlight Twin-Task USB Headlamp

**Please note: Initial shipments of Strion flashlights included a Lithium Ion battery pack that will only work in Strion flashlights. Strion LED flashlights use and are supplied with a battery pack of the same rating but have an additional electrical contact on the bottom. These batteries will work on both Strion and Strion LED lights. Currently Streamlight only uses and supplies the new battery pack that is useable in either model. Part #74175 with a date code below 4607 will only work with Strion lights; part #74175 REV D batteries with a date code of 4607 and above will work with Strion, Strion LED, ProTac HL USB and the ProTac HL USB Headlamp.