NFC, or near-field communication, is a wireless technology that allows devices to communicate with each other when they are close together. NFC can be used to share data, make payments, and connect to devices and services. One concern about NFC is that it can drain your battery. However, NFC is designed to use very little power, so it should not significantly impact your battery life. If you are worried about NFC draining your battery, you can disable it when you are not using it.