What is your question?
my wife's 2011 Chevy impala LT is having some charging issues. once this week she came out to the battery completely dead and had to be jump started. then today (8/15/17) she was sitting in the car with it running on her break and the service battery light and service charging system light came on then the car died. a co worker again jump started the car and when she turned the ignition off the car would not start again. so i went and jump started the car and it is running fine now drove it home 15 miles and it has started several times with no issues and service messages at all. i tested the cells in the battery with a hydrometer and all the cells checked out fine. then i took the car to o'rileys and had the charging system tested and every thing, alternator, and battery and starter came back good, also the terminals have no corrosion and have a good connection. i'm wondering if its a ground or if its an intermediate problem with the alternator that is happening every once in a while and is on its way out? any advice from someone with any more knowledge about this issue would be much appreciated.
