battery replacement for the charging case/pod

I'm looking to replace the battery in the charging pod/case for my Galaxy Buds, 1st edition, maybe even the board too, idk yet. It soaked overnight in beer (don't ask) lol. I let it dry out for a few days but no luck in reviving the case…yet.

The earbuds work perfect and still charge if plugged in but the charging case/pod is dead.

Also, the charging light still works on the front of the charging case.