GM's EV drivers are set to gain access to more than 17,800 Tesla Superchargers using a GM-approved NACS DC adapter.

Hoping to spark higher EV sales, General Motors Co. is offering owners adapters to access the Tesla Supercharger network.

General Motors Co. said Wednesday it will offer access to more than 17,800 Tesla Inc. superchargers through a $225 NACS DC adapter that it has approved for use with its electric vehicles (EVs). The move is part of an effort by the auto giant to provide access to more than 231,