Not charging. Not working. Green led

Hello

I bought an used Macbook White unibody late 2009 two weeks ago. Power charger is brand new. First uses seens to be ok. Became very hot (amber led) when charging battery and I couldn´t complete a cycle. Led display became white and frozen when is very hot. When plug off charger macbook back to regular temperature and display back to regular work.

Yesterday when I power on Charger plug became Greem but no battery charging. Battery off after 4 hours working and could no charge again. Computer is off and even plugged charge with greem led isn´t working. Macbook is dead.

If someone have some experience to share I will be happy. I think some problem with Macbook is burning charger.

Thank you,

Daniel Rodrigues