IOS 13 includes many interesting new features, most of which are overlooked. A new feature seen by Cult of Mac, "Optimized battery charging", has long-held battery life.
During this process, the iPhone will not charge more than 80%. This function is similar to Tesla, which limits the battery to 100% charge.
It's worth noting that when the battery is charging 80% and using 20% battery, it's good for battery health rather than charging Battery life is 100% full and used up to 0%. In the short run, it is not noticeable, but in the next 2-3 years, it will be different.
IOS 13 will release Public Beta for General Testing since July, and the official version will be released in July. Will be released in September after the new iPhone launch.