Bist Du den Links gefolgt, den Artikel gelesen? Da steht irgendwo "Details will be provided soon on apple.com" … ;-) [nachbearbeitet]

"Apple is reducing the price of an out-of-warranty iPhone battery replacement by 60 € — from 89 € to 29 € — for anyone with an iPhone 6 or later whose battery needs to be replaced, starting in late January and available worldwide through December 2018. Details will be provided soon on apple.com/de/." [Herv. d. Verf.]

s.a. https://www.apple.com/de/iphone-battery-and-performance/ (ganz unten)

(Nachbearbeitung: URL und Zitat nun von der "deutschen" Apple-Seite mit Euro-Preisen.)
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Christian, MacFix.