Also note that this affects battery chemistries other than lithium as well. My (lead-acid) car battery is currently dead. The battery itself is 7 years old.

Also note that this affects battery chemistries other than lithium as well. My (lead-acid) car battery is currently dead. The battery itself is 7 years old. The previous battery died at 8 years old. The service tech at the last replacement said that's pretty typical, and (ICE) car batteries are usually slated to be replaced at the 8-year mark.