This look into 18650 cells is *very* interesting - not least because of the conversation about reliability of these particular cells, but the thought that I've probably got tens (if not hundreds) of rechargeable Li-Ion cells lying around the house (in devices, or in my "charge these" box), and at *some point* they're gonna break ...

https://www.youtube.com/watch?v=-Y23nfAOiXQ

#liion #rechargeable_batteries

The Surprising Flaws in 18650 Lithium-Ion Batteries

YouTube