It makes for a shaky time for makers of EVs, but last week a company called QuantumScape — backed by Volkswagen — announced what it says is a major breakthrough in solid-state battery production.

Some of the biggest names in the car world are taking this tech seriously, hopefully powersports manufacturers follow suit.

BYD is responding to a report that it’s testing solid-state EV batteries in its Tesla Model 3-rivalling Seal. The rumors claimed Seal could achieve a total driving range of nearly 1,200 miles ...