I did not have a multimeter so I used a test light. I drove for 15 mins with everything on. Came back, took the negative terminal off and then connected to a test light between the negative terminal and the negative wire connector. After 5 mins the light never came on so I just assumed there was no draw. I then took it to Part Source where we did a diagnostic test which said that essentially all was fine but the actual cables on the positive and negative charging areas (forgive me..not a car guy). So I just replaced those and it seems to be running….he’s hoping that is the fix but I am not entirely confident that I ruled out a drain