Razer Nari Ultimate won't work without charger in

Hi, i got my razer nari ultimate a few months ago and everything worked great, i decided to go corded for a while because i forgot to charge every night and it became a bit tourblesome... now when i try to turn on the headset wireless it just wont turn on, it works with the usb connected but the second i unplug it the headset shuts down... (already tried to charge it all night, only from the razer original cable and pc usb only! havent used anything else on them and im so frustrated because the wireless has a much better audio control..) Please Help!