i was using a charger i got from BestBuy. it was only rated at (output - 5.1V --- 850mA) then i plugged in the cord for the tab into my note 3 charger (output - 5.3V --- 2.0A) and it charges much faster and the red X is gone when i have it plugged in and running at the same time.
in conclusion, you need to get a more powerful power supply. you can get a note 3 charger here - http://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias%3Daps&field-keywords=note%203%20charger&sprefix=note+3+cha%2Caps - and they are cheap!
i was using a charger i got from BestBuy. it was only rated at (output - 5.1V --- 850mA) then i plugged in the cord for the tab into my note 3 charger (output - 5.3V --- 2.0A) and it charges much faster and the red X is gone when i have it plugged in and running at the same time.
in conclusion, you need to get a more powerful power supply. you can get a note 3 charger here - http://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias%3Daps&field-keywords=note%203%20charger&sprefix=note+3+cha%2Caps - and they are cheap!