Have not worked on a new car in a long time. We used to disconnect the battery when welding on a body or frame repair to protect the electrical stuff but these new cars are much more heavily burdened with all sorts of high tech gizmos and ying yang. Got a 2018 Chevy Equinox in the shop needing a liftgate repair that will require using a stud gun. Do I need to disconnect the battery before using the stud gun on this vehicle? Thanks