Samsung Galaxy tab note pro screen flicker and charging issues

A

AC Question

I have a Samsung Galaxy tab note pro that has many problems. First the screen flickers even if the charger is on,at basically Every percentage randomly and then would restart itself and say that my micro SD card isn't connected even though it is . Second is that the tablet charges very slowly and is on top of that is hard to get it to charge even with me using it while charging the percentage goes down the only way for it to charge Is if it is off and it usually will only charge for a short time and it will have the icon saying it isn't charging even though the charger is connected. I don't know if this is a battery issue or something. Any help would be greatly appreciated :) -Isaac