In late 2017, Apple recognized that with the release of iOS 10.3.2, the operating system slowed down the device when the battery status was not optimal, in order to avoid that at specific times where maximum power is required, the equipment will turn off even if the battery level indicates otherwise.
This unilateral decision by Apple, forced him to add a new function within iOS to be able to deactivate this function that is natively activated. But in addition, it forced him to create a special battery replacement program, where I know considerably reduced the price, leaving it at 29 euros, practically the same price as most unofficial stores.
That program was in effect throughout 2018, the year in which the Cupertino-based company has replaced 11 million batteries. If we take into account that the battery change during the previous years amounted to 1-2 million units, we see how many users have taken advantage of this program to endure with an almost new iPhone for another year.
This decision of the users, as stated by Tim Cook in the announcement he made a couple of weeks ago, logically has affected iPhone sales, but not exclusively, since the Chinese market has also collaborated especially in a year to forget on the part of Apple and that has marked the end of an era.
The effect of the replacement program It was not particularly noticeable until the launch of the new iPhone XR and iPhone XSSince the iPhone X did represent an important aesthetic renovation compared to previous years and all those users who had already renewed their terminal, have preferred to replace the battery than choose to buy the new model this year.