Streamlight Flashlights

Rechargeable batteries can be used in certain specific Streamlight flashlights. Streamlight does not support the use of batteries other than those specifically listed in the instructions. Normally the lamps and current regulators are designed for a specific type of battery, and using other batteries often results in poor performance, either low output or extremely short lamp life, depending on the battery types involved. This excludes the Survivor LED and Knucklehead which are made to utilize a back-up 4AA battery case.