Doron Myersdorf, CEO instant-charging battery startup StoreDot, said that "smoothing out" means that phones will reorder incoming commands to make sure not all of them are done in parallel.
"Many iPhone 6s devices were shutting down unexpectedly, even after the battery replacement program (Which many people weren't entitled to use)".
Are you having issues with your older model Apple iPhone where it just slows down out of nowhere?
However, Apple said in a statement to The Verge that it is slowing down processors not to push customers to upgrade to new phones, but because it makes it easier for older batteries in iPhones to continue performing after they started aging. iPhones essentially hit peaks of processing power that the battery can not keep up with as they age.
To address that, Apple's iOS software, starting with last year's iOS 10.2.1, included better power management capabilities, the company says.
The slowdown affects a range of Apple phones, including the iPhone 7 and iPhone 6S, models that came out in 2016 and 2015, respectively.
Apple said past year it had released a feature for iPhone 6, iPhone 6s and iPhone SE to help avoid such blackouts.
"Lithium-ion batteries become less capable of supplying peak current demands when in cold conditions, have a low battery charge or as they age over time, which can result in the device unexpectedly shutting down to protect its electronic components", Apple's statement said. Two of the top reasons were features you might expect to draw upgraders. iPhone 7 was the first to be water resistant and the first to have a dual camera system. "We've now extended that feature to iPhone 7 with iOS 11.2, and plan to add support for other products in the future". But it's largely shrugged off with smartphones - it doesn't help that the battery is not user replaceable.
The admission comes days after a popular Reddit post that said performance for older iPhones can be improved by changing the battery.
If you're curious about the status of your phone's battery you can download a free app, such as Battery Life from developer RBT Digital, or head into your local Apple Store to get it checked out. Consumers could say they were confused and had no real information to go by, so buying a new iPhone was probably the best decision.