Whenever I go to use my airpods, the right pod is always indicating really low battery like 5% and the left is always at almost full charge. I don't understand why it does this and it's very annoying. I never use them separately. I put them back in the case after I'm done with them. If I don't use them for a few days and go to use them, this is how it is every time with the right being really low. Anyone else have this issue?