The problem is solved. I bought a new original battery in a webbstore in Sweden for around 120 Euro, the delivery was only 3 day with DHL. https://www.batteries-online.se/batterier-till-datorer/samsung/laptop-batteri-aa-pbyn4ab-for-bl-a-samsung-np530u3b-6250mah-original-samsung.html
Itś easy to...