Drastar Striker, Very little info. to be found on G-Cord AYM T004 head phones. If under warranty return for repair/replacement/refund. The battery/cable/charger or charge port may be faulty damaged. Look in the charge port and blow/pick out(carefully) any dust/debri that may be causing an issue also look in the port for any damage or if it is loose. Try a different compatible charger/cord to see if that is the issue. If different compatible charger/cord does not fix and port looks/test good, the battery or connection could be bad, if able to clean battery connections and reconnect/install battery, still not charging battery probably faulty. Good luck. I hope this helped you out, if so let me know by pressing the helpful button.