Glad I jumped on the retrofit when I did with the current virus situation. That being said I was driving a few nights ago and I received a notification that the 12V battery was disconnected. Looked up how to access it, popped off the cover and the tech must not have even tightened the connector as it was just barely sitting on the battery post. Tightened it with the tool I happened to have on me. Not a huge deal but just sloppy work. Fortunately it came completely loose while I was driving vs sitting in the driveway for a day or more.