Apple customers have complained of slower working phones for a while.
Now the company admits they're the ones behind it. In order to stop your phone from shutting down completely, the company slows down your iPhone.
iPhones use lithium ion batteries that don't hold their charges as well as newer batteries.
The aging battery causes unexpected shut downs or trouble operating.
Last year, Apple released an iOS update with a better power management capability.
It slows your phone down if it has an old battery or if you're in a place with extremely cold temperatures.
One solution to a faster working iPhone could be purchasing a new battery rather than an entire new phone.