According to official information, the iPhone15 uses the Qi standard in wireless charging technology, which has a number of safety protection measures, including battery overheating, overcurrent and overvoltage protection, so in theory, the use of wireless charging will not damage the battery. However, long-term use of wireless charging may make the battery charge and discharge more times, leading to a decline in battery health, so it is recommended to use wired charging appropriately to extend battery life.