CR123 vs. CR123A Batteries: Which Ones Are better?
CR123 vs CR123a: What is the Difference Between These Batteries?
Panasonic CR123A Industrial Lithium Battery - Save at Tiger Medical, Inc
Amazon.com: Duracell CR123A 3V Lithium Battery, 1 Count Pack, 123 3 Volt High Power Lithium Battery, Long-Lasting for Home Safety and Security Devices, High-Intensity Flashlights, and Home Automation : Health & Household