Broken Airpod still under warranty!

Hi there! I purchased an Apple AirPod from the Apple Store in USA and it is still under warranty. My Airpods started giving issues suddenly and it is not working properly. Can I know if this can be replaced since it is still under warranty. This can not be used anymore. Every time I try to connect to it, it takes ages to get connected plus even if it gets connected the battery low sign indicates even if the AirPod is fully charged. Appreciate if you could get back to me as soon as possible since I use my Airpods for my day to day activities and it is very important that it is been replaced or repaired at the earliest. Thank you. Serial number can be provided if needed.