I am a VARTA valta battery distributor in Xiaogan, Hubei, and I have been engaged in sales in valta for 6 years. I tell you responsibly that the wholesale price is more than 700 yuan, and the retail price is about 1000 yuan. What you said is that the battery is the highest grade silver standard product in valta, the model is 6-QW-82(640)-L, and the warranty is two years. It is a special battery for Mercedes-Benz and Audi.