For a year and a half, Apple took pictures from all sides of their handling of "optimizing" the performance of worn-out iPhone batteries by melting the processor. Although the gas processor's performance to prevent problems is common in various areas of the technology sector, the fact that Apple was not forthcoming about what they were doing was getting them in hot water.
While an excuse and a lot of discounted battery replacements smoothed things for most users, Apple has continued to work on improving user data on battery status and true background optimization. They included much more detailed battery life tracking in IOS 1
Based on iOS 13 beta, it looks like Apple is ready to go a little further when it comes to iPhone battery health. It is a new option under Settings battery to help users squeeze a little more life out of them.
Using optimized battery charging, the phone will cut off charging at the 80% mark over long repeated periods. Why? This prevents the battery from being connected to 100%. It also prevents the possibility of overheating the battery during charging for a long time. Both of these situations are potentially damaging to battery life over time.
Optimized battery charging is another small way that Apple uses AI and machine learning to deliver useful new features. In this case, the iPhone will recognize usage patterns to determine when users are likely to charge their devices for extended periods, and when they are likely to charge them. The iPhone will use this information to determine when to cancel 80% charge and then resume charging with the goal of turning 100% close when charging is likely to stop. An obvious example for most people will be charging iPhones overnight. In my case, another can be on top of the car on the way home from work.
Considering that iPhone users keep their devices longer than ever, everything Apple does not just to monitor battery health, but actually preserve it, it is a win for users. The progression of battery monitoring, health tracking and optimization over the last 18 months also shows that Apple's management learned some lessons from their last "street". They deserved the grief they got because they weren't open to the customers about how they were handling battery problems in the past. Now I think they deserve a small credit for being proactive in monitoring and preserving battery life and more transparent in their efforts.