> They absolutely do, but batteries have physical limitations that result in lower power output over time. The same can be said of SSD media. It's well-known t

> They absolutely do, but batteries have physical limitations that result in lower power output over time. The same can be said of SSD media. It's well-known that flash memory is under-provisioned to allow for inevitable degradation: Defective sectors are flagged and re-mapped. This so that your 500GB SSD still has 500GB in 5 years. This can be applied to battery tech as well. However, that would require either thicker, heavier phones, or less run-time between charges. I would say Apple's "crime" is producing hardware where one particular component has a well-known failure mode that makes the entire device virtually useless after 3 years of moderate to heavy use.