Battery killer - Crimson Trace CMR-208 Rail Master Universal Tactical Cree XPL LED Weapon Light

Occasionally I turn on the flashlight being it’s on my daily carry. I never use it for more than a few seconds just to check the function but it routinely has a dead battery after about 2 weeks and a total of 10-15 seconds of run time on that battery. I’m past my return date and after the first battery died I thought it was somehow my fault and just replaced it. I know it isn’t coming on during the day accidentally because I’d notice a bright beam of light shining from my pants, it’s just has issues! ...On a side note, get something that is more supported by holster manufacturers