Alternator checked out bad. Got a new one . Installed it yesterday and it worked well. At least the gauges showed a 14.1 V output. Everything seemed ok. I kept my gauge on it a while and it seemed ok and I took it off. At work tonight I turned my lights on and I couldnt tell if they were on.I quickly plugged in the gauge and it showed only 10.1 volts . I made it to civilization and parked the car.Had my wife come get me and gave my work to another gent. This will be 2 lifetime warranty alternators form Advance auto that are bad. What do I do now . I am frustrated, bewildered, at a total loss at what to do. Get my money back and try another store. I have no idea. Has anyone had anything in their working knowledge of these vehicles about something like this. Car runs ,starts ,drives like new. Just this alternator crap . Who makes an alternator that works? Anyone want someparts?