Strange issues with my Kindle 3

Hi everyone,

I will tell u the problems right now....

My kindle 3 showed the following screen "EMPTY BATTERY", so i tried to charged it for several hours and that seemed to work. Orange LED turned to Green LED and the kindle was alive. After a few pages, the screen froze on the sleep mode and the GREEN LED turned off. I tried to charge it again, and i saw the same result as before, but now, the LED is everytime green and it turn OFF after 5/7 seconds with a blanked page on the screen. Now im using m,y kindle while it is in charge, if i remove it to the charge, it will freeze and turn off again? any solutions? if the LED is Green, then the problem isn't the battery?

Thank YOU!