iPhone 7plus. Update 15.7.9 battery drain FAST
iPhone 7plus did update 15.7.9 and its draining battery Vert Fast Dry. Is there a fix for this?
What is the battery health reported in Settings>Battery>Battery Health?
The 7 plus is getting pretty long in the tooth. Rechargeable batteries naturally lose their ability to hold a charge with age and use. Once the battery health drops to 80%, it needs to be replaced.
Given the age of the phone and the fact that it is now (as of tomorrow) 2 major versions behind, I would seriously consider a new phone instead of paying for a new battery.