Cited as a reference
Overcharging a Lithium ion 18650 cell
Why people recommend it
Linked as a visual warning of what can happen when lithium cells are overcharged or abused, mainly to back up safety points in charging discussions.
Watch for: A demonstration of failure, not a charging guide
In their words
However, if the lower voltage battery is not rechargeable, or already fully charged, you will damage it, and some types of battery don't like that.
user16324 on electronics.stackexchange.com, Sept 2021. CC BY-SA.
