GP CR123A lithium batteries are now available in super value 10-pack. Ideal for people using larger quantities of batteries or engineers replacing batteries in equipment. Originally designed for cameras these GP CR123A batteries are more commonly used in alarm systems, PIR detectors, Arlo cameras, smoke detectors and LED torches. GP CR123A Lithium Batteries have an extremely long shelf life too.  These CR123A size batteries are also known as various other part numbers including 123 123A CR123 DL123 DL123A CR17345.  Voltage : 3V Height : 34.5mm Diameter : 16.8mm   Â