Got in the 52 to go to work this morning,batterlow would not start, I did not leave anything on this time, at least I saw no signs of it,,,the battery's are good , and put on a new alternator last week, no problem till this morning, drove the truck yesterday with no problem, what would cause a drain,, what is the best way to look for a short? I put in my other fresh battery, truck cranked right away,,guess tomorrow will tell me something,,,,Fred