The top iOS 13 features and perks you’ve probably missed : iphone
If I’m not mistaken, that is the cellphone studying your charging habits to cost in probably the most environment friendly method for battery life. It’s not best for the battery to sit down at 100%. In conditions the place you’re charging in a single day, each night time, your battery would stand up to 100% and then sit there utilizing a bit, charging a bit all night time. The iPhone will now determine this sample and solely cost as much as a specific amount (let’s say 80%, don’t recall) and then save the final 20% till proper earlier than you often take the cellphone off the charger. You solely obtain this notification in case your cellphone has discovered your patterns.