I agree that they work well. Easy to adjust but it is on the back of the unit. You have to hook a ground wire to the body of VR and car while making the adjustment.I have mine set at 14v.This is my first year with one after a 3 year battle with about 6 VR's that would over charge 15-16+ volts. Mopar Action did a article ,Rick Ehrenburg wrote about the Transpo VR with high regards.
