Switch on Optimized Battery Charging
Battery life and performance are probably important to you, which means that normal battery aging and performance throttling are also big deals. While you can’t prevent them, you may be able to reduce battery aging with a new iOS 13 feature.
Optimized Battery Charging, which you can enable in Settings > Battery, will analyze your charging habits to figure out when you usually juice up your device. It’ll then keep it from sitting at full charge for too long, which can reduce the rate that the battery ages.