Corrosion...........
Just a friendly reminder, check your gear. If you rely on it to defend yourself and or loved ones, check it frequently.
Had a power outage the other night. Reached for my supposedly best flashlight, it was dead. No light. Got my back up out of a sock drawer. Worked just fine.
I won't name the brand but it is one of the more popular out there. A compact LED that uses two 123 batteries. Changed batteries. Nothing. Tapped it on the counter and it flickered but would not stay on. Won't be buying that brand anymore. It's only two years old if that.
Im a maintenance freak when it comes to life or death home defense.
I'm so anal on battery maintenance that I made a spreadsheet and listed every battery in my house. I check them all every year to make sure none are leaking and I also check the voltage and get rid of the mostly dead batteries. I rarely if ever leave an alkaline battery in a device for 3 years, but if it gets 3 years old, I change it. And duracells are the absolute WORST battery in the business. I've had at least 6 or 7 leaks in the past several years. I now flat out refused to buy them. I've used hundreds of the Amazon store brand alkaline batteries and none of them have leaked.
You can test it all you want, but that don't mean it will work the next time. I just try to do the best I can with what I have . . .
Why don't you mentioned the brand so we'll at least have it as a data point?
Streamlight. Just remembered that I two Scorpions years ago. The switches quit in less than year. Bad luck? Or?
Who knows. Just bought another Surefire.
That's why I have more than one. Several in each vehicle. My hunting truck always has 4-5. Several in the house. You can have too many flashlights/knives or guns.
You can test it all you want, but that don't mean it will work the next time. I just try to do the best I can with what I have . . .