"Field replaceable" might be better way to describe it. If my flashlight runs out of power, I unscrew the tailcap, take out the 14500 cell, and put another one

"Field replaceable" might be better way to describe it. If my flashlight runs out of power, I unscrew the tailcap, take out the 14500 cell, and put another one in it. I don't need tools and I can do it in the dark; it would be a major flaw for a flashlight if I could not.