Albert Einstien said:
"Two things are infinite: the universe and human stupidity; and I'm not sure about the universe."
He was right.
Oops, it was hydrogen. And stupidity.
Hydrogen makes up 3/4 of the mass of the Univerxe - or it did 30 years ago when I did this stuff at uni.
The usual reckoning of time to leave with lithium cells is 60C. Boiling them for any length of time could get.
Interesting.
In a bad way.