Thanks for the suggestion. I actually was able to resolve this problem myself thankfully!
Well, I had thought that I had been using an OEM tab 2 charger, but after I checked into it a little bit, I figured out they what I had received when buying the tab (second hand) was in fact the OEM wall plug for a Samsung galaxy s3 smartphone. Turns out they are amped totally different. I went to the local att store and looked at the voltage/watts/amps of all the usb wall chargers until I found one with the exact same specs, and bought it, roughly $30. I didn't have the highest of hopes but I took it home and plugged it in, to my amazement, no more red X while charging! Hooray! Talk about major relief... Hope my post can help someone else, this seems to be a pretty popular problem.