Apple has come under criticism in recent months for finally admitting that they throttle CPU speeds on iPhones with old batteries. After pressure from media and customers, the company is including a way to disable this throttling in iOS 11.3, which is expected to be available in a few weeks.
What to Expect from the Battery Health Feature
The new feature—called Battery Health—will show you two simple things: the battery’s maximum capacity and the “peak performance capability.” The latter is what you’ll be looking for if you’re concerned about CPU throttling.