Maximizing your iPhone's battery life can significantly enhance your device's usability throughout the day. Start by adjusting settings such as reducing screen brightness and enabling Low Power Mode. Regularly check for battery-draining apps through Settings and consider disabling background app refresh for apps you rarely use. Additionally, keep your iPhone’s software up to date to benefit from the latest optimizations and fixes designed to improve battery performance. I also had the same problem with my iPhone for several months. I went to an iPhone repair shop and the problem was fixed.