Electric car battery industry in some of the bad businesses in order to seek benefits, will use some extreme means, such as shoddy, genuine and old for new and so on, then, how to judge their own electric car battery is new or old?In order to seek profits, some bad businesses in the electric vehicle battery industry will adopt some extreme measures, such as shoddy, fake and old for new, etc These practices not only hurt consumers, but also seriously disrupted the market order.