I have a small LED flashlight that runs on a single AA battery. Apparently I let it sit too long and the battery is now swollen and corroded and I can't get it out of the flashlight. Previously, when I've needed to replace the battery, I've just unscrewed the base and let the battery slide out via gravity. But now it's too big and won't slide out on it's own, and as far as I can tell, there's no way to remove the lamp end of the flashlight and push the battery out from the other end.
Basically, there's only one opening in the housing and no easy way to grip the battery and pull it out. I don't want to try to dig it out with a sharp implement. How can I remove the battery without destroying it and getting acid and corroded junk all over the place?
Here are a couple pictures to show you what I'm dealing with:
@jsotola's comment was the impetus for my eventual solution.
The base of the flashlight is basically a screw that loosens or tightens the base onto the main body of the flashlight. So to turn it on you "tighten" the screw, and to turn it off you "loosen" the screw. It also has a mode where pressing on the base will turn on the lamp as long as you hold pressure on the base.
The bottom line is that by extending this screw to it's maximum extension I was able to vigorously whack that base against a table until the battery slid loose of the main tube just far enough that I was able to grip it with a pair of pliers and pull it free. Luckily, it was only the one terminal that was corroded, so I didn't have to worry about the other end. A little vinegar and rubbing alcohol proved sufficient to clean up the corrosion at the base of the flashlight. Although I can't say that it's necessarily good as new, it's definitely working as expected, and I'm happy to say that I didn't have to toss something into a landfill before it's time.