So sorry to hear that your headphones aren't charging. If I could ask a few questions. Are you getting any lights at all? Have you tried more than one cable or adapter?
Please let us know.
Tried various chargers and various cables. Charge light doesn't go on at all. Connection light went on until the bluetooth module was completely dead.
Thanks for responding and all the troubleshooting you have already done. It looks like its time to contact your local Bose support here. Click on your country, scroll down to "Contact Us"
Let us know how it goes