Mine is the issue with the battery charge of 15 plus. Though it charges at an average speed, it reaches upto 80% and not 100% , even if the optimised charge option is unenabled . In addition there is a lot of heat generation. The service executives re installed the iOS18 full version and have asked to use the device for one wee. But no use, it is again frustrating. 28 percent charge is drained per hour. All was fine before I installed 18.2 iOS. My phone is just 8 months old and has 99percent battery life with 140 cycle count. So sad because I purchased it after saving Money for a long time.