On Thursday, January 4, 2018 at 5:17:15 PM UTC-5, rickman wrote:
nospam wrote on 1/3/2018 8:38 AM:

Yes, but it doesn't have to impact the operation of the product in the first
year. A well designed product would be sized to continue to operate as the
battery ages. I've had laptop batteries that worked nearly as well as new
for two or three years. Do you not understand the issue? Apple would seem
to have either not given this attention in the design stage (indicating
incompetence) or they made a conscious decision to allow battery
deterioration to impact the operation of the phone in the first year of
operation (with potential warranty issues).

Rick C

Dayum, but you know next-to-nothing about battery chemistry and/or the aging process. Knowing now that you are likely unencumbered by the thought process (insult) and likely on the Spectrum (not an insult, but a reach for an explanation for your apparent-deliberate ignorance), batteries age. They age in two ways:
a) Not able to deliver the necessary amperage at a given voltage for as long as before.
b) Not able to deliver sufficient voltage as before. Subset: voltage is OK, but the amperage is not.

This is true of every kind of chemical battery from a liquid lead-acid battery used for backing up POTS systems to a Tesla battery.

I keep radio-control submarines. On them, I have a device that reads the state of the battery, and if it goes critical, immediately surfaces the boat, and will not permit diving. I can determine the age of the battery by when that happens on a run.

Again, this is a chemical issue true of every kind of chemical battery over time. Cell phones make heavy demands on batteries depending on what they are asked to do. Some simply cannot meet that demand with an old battery, and so 'limit' the phone much as the "Sub-Safe" device does. That Apple explained this badly is the issue. Not what happened.

Getting back to Jimmy Neutron - he offered a Conspiracy-Based explanation for an obvious phenomenon in order to light off his personal tempest in his virtual teapot. It was neither thoughtful, nor offered as a basis for actual discussion.

Peter Wieck
Melrose Park, PA