Have you checked your batteries in your device lately?
I have a shelf full of flashlights and lanterns, most stored with batteries. I don’t want to have to find and load some batteries during a power outage. As such, I periodically check the batteries in these and other battery-powered devices to see if there are any issues, especially ones that I don’t use very often. I did find one light with batteries that had obviously leaked and was corroded. I was able to clean it out and salvage the light.
Do you regularly check you batteries in your devices?