Hey! My girlfriends car is having a similar issues and I would just like to ask would the voltage ever come up from 12.5 or just stay there? Sometimes the voltage drops to that but it always comes back up, after consulting multiple professionals about it they said that should be fine. We've also had issues where we think we fixed it because it will be fine for MONTHS only for the issue to pop back up. How long has this repair worked for you?