It is impossible to increase the health of the original battery. There are ways to increase the battery capacity of iphone: 1. At present, the production capacity of third-party battery manufacturers in the market will be about 30% more than that of original batteries. 2. After uploading and updating to iOS 14.6 system version, the battery health of mobile phone has improved by 3%, so Apple may have adjusted its algorithm. You can increase the maximum capacity of the iphone battery.