Ironic . . . I just post a few days ago about my experience with the nite-ize upgrade. I LOVE the mini-mag design because it's a twist on/off instead of the usual push button end cap. I standardized on them with nite-ize inserts a couple of years ago & have had great service.
UNTIL, a recent camping trip to Edisto Island (south of Charleston). Great trip, but one night I had been using one of my mini's around camp, turning it on & off as needed. A few minutes later I began to feel it heating up (really heating up) in my pocket. Pulled it out & found the led would't work & it was getting hotter & hotter.
I unscrewed the tailcap, dropped the batteries out, & found that the whole led insert had been fused & damaged from the heat.
Pretty confused at first, til someone suggested checking those two little wires that stick out of the back of the led insert to see if they had gotten twisted together somehow & basically shorted the whole thing out.
Couldn't tell for sure due to the heat damage, but that's the most likely explanation.
Replaced it with one Dorcy (Dorcey?) & one Garity to test them both. Lots of light from both, but I'm not sure they're as water resistant as the mag-lite design & I REALLY dislike the endcap on/off buttons. They're just begging to get bumped in a pack, turned on accidentally, & me finding out hours later that the batteries are drained.
Any suggestions on how to pack these to prevent that & yet still leave them easy to get to?