IOS 13 has a new feature called Optimized Battery Charging, which is supposed to increase battery life by preventing it from charging up to 100% until you need it.
How does this work?
The idea is that iOS 13 "learns from the daily charging routines", so that it can understand when it is best to fill the last 20%. This means that you avoid damaging the battery by not constantly keeping the battery fully charged.
But how will it work in real life?
The answer here is "it depends".
If you charge it regularly iPhone at night and wake up at about the same time, then this function seems to work. Quickly charges iPhone to 80% and adds the final 20% in the last 30 minutes before "normal" disconnect your iPhone.
A problem will occur if you do not have a schedule in the schedule loading or if you're not the kind of person who charges your iPhone overnight. At this point, iOS seems to have the default rate of normal charging to fully charge the battery as quickly as possible. The same is true if you charge it during the day.
One potential downside to this feature is if you have to get up early one morning, your iPhone may have only charged 80%. It's not the end of the world, but this 20% you'll need throughout the day.
Η Apple claims that the new feature could help reduce battery wear. We will agree that the feature might have some "fails" but it will certainly help - at least slightly - our battery.
Of course, no one can guarantee that at some point you will not need to replace or replace the device, as over time nothing remains unaltered.