[Q] Rooted, ROM'd > Only works plugged in > ODIN to Stock > Problem Remains topic

I recently rooted/rom'd my phone I was running the Alliance ROM for about a month. Yesterday the problem began:
-Unplugged, dies then boot loops the NOTE 2 logo
--can get it to recovery just fine
---I wiped and reinstalled Alliance, still continued

Next I Odin to stock via http://forum.xda-developers.com/show....php?t=2780984. Odin'd ok. Runs fine as log as its plugged in.
-Still, Unplugged, dies then boot loops the NOTE 2 logo
-New issue, red x on Sprint Signal.

If it stays plugged in its fine. Seems like it could be a battery/hardware issue. Any ideas? Seems like I've seen this issue before from others. Can't find anything though.