Hi my name is Emma. I have a 05 ford five hundred 3.0 SE FWD. I just recently replaced my alternator like four days ago and drove it that evening and the next two days then battery light came on. Had battery check, it was no good. Bought brand new battery today put it in battery light is still on and it acts like its not getting enough voltage? Is there anything I can check before I go an take the alternator off again it is a reman but lifetime warranty