And that is why I don't rely on anything battery operated. When I head into the woods the only battery with me is in the rifle scope for the lit reticle, which is seldom used anyway. The other day I was practicing dry firing my P365 with a red dot on it. I was at it for about fifteen minutes when my 30,000 hour battery died. I took the red dot off. One can always rely upon a rifle scope reticle to be there and iron sights. Anything else, good luck.One time, all my batteries died on me (rangefinder, headlamp and even trail camera) I didn’t check a single one before leaving. I now replace all batteries before every season whether they need it or not
Much easier to simply do things the old fashioned way and not have to deal with critical electronic stuff when the buck of a lifetime is standing out there in front of me. The sights and stuff that worked before electronics still work just fine. May not be as fancy but don't let you down when the pressure is on. Most recent was a 30,000 hour battery in a red dot that failed within 2 weeks of installation during a practice session. I don't need grief like that in my life.I change the batteries before the season and carry extra ones in a small bag. Electronics always fail at the worst time. A quick check can stop that from happening.