Hello, I've experienced this before in other wireless earbuds it can be an easy fix! The first and foremost action will be to clean the case and bottom of the pod with a cotton swab and 90% or higher isopropyl alcohol ensure that both are dry before trying to charge. If that doesn't fix the problem ensure that you have the most up-to-date software and the battery level on your case. Last resort just reset the buds by disconnecting them and reconnect them. If the problem persist it may be something internal in the buds in which case take them to a repair shop or contact Apple themselves. Hopes this helps!