Ledlenser Core 500-Lumen 3 Modes LED Rechargeable Spotlight Flashlight (Lithium Ion (3.7V) Battery Included) in the Flashlights department at Lowes.com
Ledlenser 880621 14500 3.7V Lithium-Ion Button Top Battery
LED Lenser Rechargeable 3.7v Lithium-Ion Battery for M3R Flashlight (LED Lenser 880237) | HomElectrical.com