I have two Surefire Fury PX2 flashlights (15/200 older style that looks like this: that seem to drain batteries, even when NOT used. Each flashlight uses 2 CR123A batteries. The odd thing is that I never really use them, but they seem to drain batteries. I have them stashed around the house for emergencies and check them every 60-90 days and find that the batteries are ALWAYS dead, or near dead. This is true for both flashlights. I am using new Surefire brand batteries. This is with NO use. I can't believe that this is normal. What the heck?! I have been keeping the "base" screwed in, so that the button on the rear of the flashlight can function without having to be screwed in first. My cheap Duracell LED flashlights are outperforming these expensive Surefire lights in terms of "storage". [censored]?! I am tired of buying expensive CR123A batteries for unused flashlights. Any thoughts?