People like me read the encylopedia for fun.
Today I read about Li-ion batteries. “ At a typical 100% charge level at 25 degrees Celsius, Li-ion batteries irreversibly lose approximately 20% capacity per year from the time they are manufactured, even when unused.”
![[GOTH RD]](/images/2005-07-07-goth-rd.jpg)
![[BOOTS!]](http://halcanary.org/images/uscav.com_prodinfo_enlarged_5575L.jpg)