Apple says it reduces the performance of phones with low battery capacity to protect electronic components. Apple has admitted that with the price of iPhone devices falling,Indicates that this is a way to protect the device components. For years, Apple's customers have been speculating whether Apple will slow down older smartphones and force them to upgrade to new models. Apple has now admitted that the speed of the phone's central processor (CPU) is indeed slowing down, although it does not force consumers to upgrade their devices. The behavior of slowing down a computer processor is called "frequency reduction" or "frequency reduction ". A Reddit user claimed that Apple's technology automatically slows down the speed of the phone when the battery's charging capacity drops, the company said, because of the need to protect electronic components. Apple said in a statement that as it grew older, lithiumIon batteries used in mobile phones are increasingly unable to provide the top current needed. Problems with peak current consumption occur especially when the battery is cold or low charged"This may cause the device to be shut down unexpectedly to protect its electronic components," Apple said . ". IPhone users complain that their devices will suddenly shut down even if they have a lot of money left. Apple said: "Last year, we released the features of the iPhone 6, and the iPhone 6 s and iPhone SE will only smooth the instantaneous peak when needed to prevent the device from accidentally turning off in these cases. "We have now extended the feature to iPhone 7 via iOS 11. 2, and plans to increase support for other products in the future. "Our goal is to provide the best experience for our customers. "Lithium-Due to physical wear, Ion batteries lose capacity over timeand-Tear through the ion of the battery material. Lithium battery replacement-Ion batteries that cost £ 79 in the UK should allow them to work again at normal speed.