BYD has now begun testing solid-state EV batteries in its Tesla Model 3-rivalling Seal. Initial tests suggest that the total driving range could reach nearly 1,200 miles (1,875 km). BYD begins testing solid-state EV batteries in the Seal It has been over a decade since BYD first began researching and developing the promising new EV battery technology. Last year, the company reached a milestone by testing its first solid-state battery cells with capacities of 20 Ah and 60 Ah. We knew BYD was plan...