I took the plug and play battery from my old controller to use in my new elite and switched out USB cables. Everything worked fine until just now. I received the notification of a low battery so I plugged it in. The low battery icon faded out from the dashboard and within a few minutes the low battery notification popped up again, while it was still plugged in. I unplugged the controller, and then plugged it back in. Same thing happened. I then put the old USB cable back in and tried again. Same thing happened, but the charge indicator light on the cable did not come on (I'm not sure if it's even supposed to, considering there isn't one on the new USB cable). Any ideas? Anyone else having this happen? The micro USB port on the controller is super snug, not sure if that's normal.
Edit: When unplugging the cable from the controller, the Xbox button flashes, even though it is not providing power.