What does optimized battery charging mean?
iPhone XsMax I have noticed it takes a long time to charge & runs out of battery quickly
iPhone 6s Plus, iOS 10
2 replies
Optimized charging means that your iPhone is only charging completely when it estimates you're going to use it soon. This is to protect the battery from overcharging
See this link for further information about optimized charging.
About Optimized Battery Charging on your iPhone - Apple Support
What does optimized battery charging mean?