camero2734 , May be a faulty battery. 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 bent pins and straighten very carefully with a tooth pick. Try one more time 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. The link below can get you inside the device to check connection issues and enable you to reseat them to ensure good contact. Good luck. I hope this helped you out, if so let me know by pressing the helpful button.
DKnight MagicBox II Motherboard Replacement