Apple is still paying out the 500 million dollars they lost in a lawsuit about this exact practice.

https://www.bbc.com/news/technology-67911517

Apple admitted to slowing down iPhones to keep the batteries from failing, and agreed to stop doing it and created a new battery replacement plan. I’ve personally experienced the benefit of getting the battery on Apple devices replaced which made them behave like new again. There’s a reason old Apple devices hold their value a lot better than competing manufacturers.

	▲	elictronic an hour ago \| parent \| next [-]
		They hold value now. They didn’t if we go back to before those lawsuits. Apple can blow smoke wherever it wants, but that 500 million loss isn’t about battery health. As an aside, I have this lovely tower from France, barely used, scrap price should be very high. Priced to sell?
	▲	Grombobulous 20 hours ago \| parent \| prev [-]
		It was a pretty terrible controversy at the time but I think the battery health settings pane we got out of it was a good compromise and a net positive. What would be even better would be fully user-replaceable batteries. To be more precise, the phones weren’t slowed down to keep the batteries from failing, they were slowed down to maintain stability and stop random crashes. As batteries age they lose their peak voltage capability, so you’re basically undervolting your components unless you slow them down.