CR123 - Panasonic battery has a high capacity and low internal resistance.
These Panasonic CR123A batteries are exactly the same specifications as the Panasonic Industrial version, they just have different jackets on them.
They also have a long shelf life of up to 9 years. Replaces CR123A DL123A CR123 CR17345 123 123A K123LA CR-123A CR-123L CR123L.