I use the containers of food supplements, they have an internal diameter of 27mm.
Can I keep one or two 26650 batteries.
If you cut the container to about 90mm. I also have the cap space to complete, so I will have salts against humidity.
If you want to keep two batteries, I’ll have to cut the cap, which still works fine.
The tube can be cleaned and can be used as a diffuser.
I tried the container in water and after 20 minutes had the inside dry.
