Energizer Lithium CR123 Digital Camera Batteries (12-Pack) in the Device Replacement Batteries department at Lowes.com
Streamlight CR123 Lithium 3-Volt Battery (12-Pack) 85177 - The Home Depot
Amazon.com: 20 Pack CR123A 3V Lithium Batteries, AHJ 3Volt 1600mAh CR123 CR17345 Battery with 10 Year Shelf Life PTC Protection for Flashlight Smoke Detector Alarm Sensors [Non-Rechargeable, NOT for Arlo] : Health