I don’t think the code is available for people to figure out whether there’s a reason or if it’s completely arbitrary.

That doesn’t really work with manufacturers trying to win customers on battery life, as well as hoping that customers will buy a new device rather sooner than later.

Yes, but this allows user to define lower limit, which further prolongs the battery life.
I want to be able to control whether it charges up to 75, 90 or 100 of the available capacity.

Same shit trying to implement with systems on the backend older than a lot of people using them today I’d imagine