CR123A vs AA: Choosing the Right Battery for Your EDC Flashlight | Everyday Carry
Amazon.com: Panasonic CR123A-12PK Lithium 3V Photo Lithium Battery, 0.67" Diameter x 1.36" H (17.0 mm x 34.5 mm), Black/Gold/Blue (Pack of 12) : Health & Household
Energizer 123 Lithium Batteries (2-Pack), 3V Photo Batteries EL123APB2 - The Home Depot